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31023122132013 = 31173137311409739
BaseRepresentation
bin1110000110111001000100…
…01011001010110000101101
311001211210002201111012011220
413003130202023022300231
513031240323231211023
6145551454153133553
76351226613125644
oct703344213126055
9131753081435156
1031023122132013
119980917743a60
1235905a49ba2b9
131440610b893bb
147937545d435b
1538beb14273e3
hex1c37222cac2d

31023122132013 has 128 divisors (see below), whose sum is σ = 46400452300800. Its totient is φ = 18280144281600.

The previous prime is 31023122131931. The next prime is 31023122132039.

31023122132013 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31023122132013 - 230 = 31022048390189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023122132413) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 41979867198 + ... + 41979867936.

It is an arithmetic number, because the mean of its divisors is an integer number (362503533600).

Almost surely, 231023122132013 is an apocalyptic number.

31023122132013 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31023122132013 is a deficient number, since it is larger than the sum of its proper divisors (15377330168787).

31023122132013 is a wasteful number, since it uses less digits than its factorization.

31023122132013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 1296, while the sum is 24.

It can be divided in two parts, 3102312 and 2132013, that added together give a palindrome (5234325).

The spelling of 31023122132013 in words is "thirty-one trillion, twenty-three billion, one hundred twenty-two million, one hundred thirty-two thousand, thirteen".

Divisors: 1 3 11 33 73 137 219 311 409 411 739 803 933 1227 1507 2217 2409 3421 4499 4521 8129 10001 10263 13497 22703 24387 29857 30003 42607 53947 56033 68109 89571 101243 110011 127199 127821 161841 168099 229829 249733 302251 303729 328427 330033 381597 468677 593417 616363 689487 749199 906753 985281 1113673 1399189 1406031 1780251 1849089 2528119 3110311 3324761 3341019 4090409 4197567 7390739 7584357 9285527 9330933 9974283 12271227 16777517 17426263 22064323 22172217 27856581 31486573 34213421 41408387 44994499 50332551 52278789 66192969 81298129 94000061 94459719 102140797 102640263 124225161 134983497 184552687 191688893 242707553 243894387 282000183 306422391 346352303 455492257 553658061 575066679 728122659 1034000671 1039056909 1272117199 1366476771 2298519829 3022812251 3102002013 3816351597 6862004453 6895559487 9068436753 12878008357 13993289189 20586013359 25283718119 33250934761 38634025071 41979867567 75482048983 75851154357 99752804283 141658091927 226446146949 424974275781 940094610061 2820283830183 10341040710671 31023122132013