23131134421123 has 4 divisors (see below), whose sum is σ = 23134226412888. Its totient is φ = 23128042429360.

The previous prime is 23131134421117. The next prime is 23131134421127. The reversal of 23131134421123 is 32112443113132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23131134421123 - 2¹³ = 23131134412931 is a prime.

It is a super-2 number, since 2×23131134421123² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23131134421127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1545984661 + ... + 1545999622.

It is an arithmetic number, because the mean of its divisors is an integer number (5783556603222).

Almost surely, 2^{23131134421123} is an apocalyptic number.

23131134421123 is a deficient number, since it is larger than the sum of its proper divisors (3091991765).

23131134421123 is an equidigital number, since it uses as much as digits as its factorization.

23131134421123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091991764.

The product of its digits is 10368, while the sum is 31.

Adding to 23131134421123 its reverse (32112443113132), we get a palindrome (55243577534255).

The spelling of 23131134421123 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty-four million, four hundred twenty-one thousand, one hundred twenty-three".