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23113111123 = 371913270569
BaseRepresentation
bin10101100001101001…
…100001011001010011
32012122210101200212201
4111201221201121103
5334313424023443
614341254104031
71445523126424
oct254151413123
965583350781
1023113111123
119890826533
12459064b017
13224464361b
14119393364b
1590420434d
hex561a61653

23113111123 has 8 divisors (see below), whose sum is σ = 23862078720. Its totient is φ = 22370685120.

The previous prime is 23113111103. The next prime is 23113111139. The reversal of 23113111123 is 32111131132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23113111123 - 29 = 23113110611 is a prime.

It is a super-2 number, since 2×231131111232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23113111123.

It is not an unprimeable number, because it can be changed into a prime (23113111103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628218 + ... + 1642351.

It is an arithmetic number, because the mean of its divisors is an integer number (2982759840).

Almost surely, 223113111123 is an apocalyptic number.

23113111123 is a deficient number, since it is larger than the sum of its proper divisors (748967597).

23113111123 is a wasteful number, since it uses less digits than its factorization.

23113111123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270797.

The product of its digits is 108, while the sum is 19.

Adding to 23113111123 its reverse (32111131132), we get a palindrome (55224242255).

The spelling of 23113111123 in words is "twenty-three billion, one hundred thirteen million, one hundred eleven thousand, one hundred twenty-three".

Divisors: 1 37 191 7067 3270569 121011053 624678679 23113111123