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103121312010101 = 71123617912082949
BaseRepresentation
bin10111011100100111001101…
…001010111100111101110101
3111112010022010112112102201222
4113130213031022330331311
5102004014421333310401
61003153135435400125
730502161146363150
oct2734471512747565
9445108115472658
10103121312010101
112a948559298640
12b6957268b3045
1345703b4911938
141b671533bac97
15bdc64e27cc1b
hex5dc9cd2bcf75

103121312010101 has 64 divisors (see below), whose sum is σ = 138082019328000. Its totient is φ = 74643619564800.

The previous prime is 103121312010089. The next prime is 103121312010103. The reversal of 103121312010101 is 101010213121301.

It is a de Polignac number, because none of the positive numbers 2k-103121312010101 is a prime.

It is a super-3 number, since 3×1031213120101013 (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103121312010101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103121312010103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2492975 + ... + 14575923.

It is an arithmetic number, because the mean of its divisors is an integer number (2157531552000).

Almost surely, 2103121312010101 is an apocalyptic number.

103121312010101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103121312010101 is a deficient number, since it is larger than the sum of its proper divisors (34960707317899).

103121312010101 is a wasteful number, since it uses less digits than its factorization.

103121312010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12083130.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 103121312010101 its reverse (101010213121301), we get a palindrome (204131525131402).

The spelling of 103121312010101 in words is "one hundred three trillion, one hundred twenty-one billion, three hundred twelve million, ten thousand, one hundred one".

Divisors: 1 7 11 23 61 77 79 161 253 427 553 671 869 1403 1771 1817 4697 4819 6083 9821 12719 15433 19987 33733 53009 108031 110837 139909 371063 775859 1219207 8534449 12082949 84580643 132912439 277907827 737059889 930387073 954552971 1945354789 3056986097 5159419223 6681870797 8107658779 10500082681 16952377447 21398902679 21954718333 56753611453 58227731231 73500578767 118666642129 153683028331 186476151917 241501901663 407594118617 640505043541 1305333063419 1339237818313 1690513311641 4483535304787 9374664728191 14731616001443 103121312010101