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23012113113231 = 31117233929345389
BaseRepresentation
bin1010011101101111011001…
…10100111110000010001111
310000110221021201200200122020
411032313230310332002033
511004012301424110411
6120535341355421223
74563366421031634
oct516675464760217
9100427251620566
1023012113113231
117372422a22aa0
1226b7a9a154813
13cac057530858
14597b13bb818b
1529d8e7c40606
hex14edecd3e08f

23012113113231 has 64 divisors (see below), whose sum is σ = 36983789429760. Its totient is φ = 12555032483840.

The previous prime is 23012113113217. The next prime is 23012113113239. The reversal of 23012113113231 is 13231131121032.

It is not a de Polignac number, because 23012113113231 - 27 = 23012113113103 is a prime.

It is a super-2 number, since 2×230121131132312 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012113113239) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 506974885 + ... + 507020273.

It is an arithmetic number, because the mean of its divisors is an integer number (577871709840).

Almost surely, 223012113113231 is an apocalyptic number.

23012113113231 is a deficient number, since it is larger than the sum of its proper divisors (13971676316529).

23012113113231 is a wasteful number, since it uses less digits than its factorization.

23012113113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84736.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 23012113113231 its reverse (13231131121032), we get a palindrome (36243244234263).

The spelling of 23012113113231 in words is "twenty-three trillion, twelve billion, one hundred thirteen million, one hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 3 11 17 23 33 51 69 187 253 391 561 759 1173 4301 12903 39293 45389 117879 136167 432223 499279 667981 771613 903739 1043947 1296669 1497837 2003943 2314839 2711217 3131841 7347791 8487743 9941129 11483417 15363563 17747099 22043373 25463229 29823387 34450251 46090689 53241297 168999193 195218089 506997579 585654267 1783469977 5350409931 19618169747 30318989609 41019809471 58854509241 90956968827 123059428413 333508885699 451217904181 697336761007 1000526657097 1353653712543 2092010283021 7670704371077 23012113113231