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23123110113 = 326433995699
BaseRepresentation
bin10101100010001111…
…101010100011100001
32012200111012200220200
4111202033222203201
5334324004010423
614342252255413
71446004123125
oct254217524341
965614180820
1023123110113
119896435964
124593a71569
13224673489c
141194db7585
1590502bd43
hex5623ea8e1

23123110113 has 12 divisors (see below), whose sum is σ = 33452000400. Its totient is φ = 15391428696.

The previous prime is 23123110081. The next prime is 23123110123. The reversal of 23123110113 is 31101132132.

It is not a de Polignac number, because 23123110113 - 25 = 23123110081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23123110123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1992063 + ... + 2003636.

It is an arithmetic number, because the mean of its divisors is an integer number (2787666700).

Almost surely, 223123110113 is an apocalyptic number.

It is an amenable number.

23123110113 is a deficient number, since it is larger than the sum of its proper divisors (10328890287).

23123110113 is a wasteful number, since it uses less digits than its factorization.

23123110113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996348 (or 3996345 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 23123110113 its reverse (31101132132), we get a palindrome (54224242245).

The spelling of 23123110113 in words is "twenty-three billion, one hundred twenty-three million, one hundred ten thousand, one hundred thirteen".

Divisors: 1 3 9 643 1929 5787 3995699 11987097 35961291 2569234457 7707703371 23123110113