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121111130032231 = 1731794233768711
BaseRepresentation
bin11011100010011001100001…
…111000100100100001100111
3120212211002222212222000121011
4123202121201320210201213
5111333241043242012411
61105325403545403051
734336663463501233
oct3342314170444147
9525732885860534
10121111130032231
1135653a3a5a7149
1211700194499487
135276966059921
1421c9b4a7b55c3
15e005a22cdc21
hex6e2661e24867

121111130032231 has 32 divisors (see below), whose sum is σ = 134052648468480. Its totient is φ = 108909461606400.

The previous prime is 121111130032187. The next prime is 121111130032241. The reversal of 121111130032231 is 132230031111121.

It is a cyclic number.

It is not a de Polignac number, because 121111130032231 - 215 = 121111129999463 is a prime.

It is a super-2 number, since 2×1211111300322312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111130032241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1762581966 + ... + 1762650676.

It is an arithmetic number, because the mean of its divisors is an integer number (4189145264640).

Almost surely, 2121111130032231 is an apocalyptic number.

121111130032231 is a deficient number, since it is larger than the sum of its proper divisors (12941518436249).

121111130032231 is a wasteful number, since it uses less digits than its factorization.

121111130032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111175.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 121111130032231 its reverse (132230031111121), we get a palindrome (253341161143352).

The spelling of 121111130032231 in words is "one hundred twenty-one trillion, one hundred eleven billion, one hundred thirty million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 17 31 79 527 1343 2449 41633 42337 68711 719729 1168087 1312447 2130041 3344623 5428169 22311599 36210697 56858591 92278873 103683313 168273239 1762616321 2860645063 2909017607 49453299319 90179545817 229812390953 1533052278889 3906810646201 7124184119543 121111130032231