23123132131 has 16 divisors (see below), whose sum is σ = 26808420960. Its totient is φ = 19710906880.

The previous prime is 23123132101. The next prime is 23123132147. The reversal of 23123132131 is 13123132132.

It is a cyclic number.

It is not a de Polignac number, because 23123132131 - 2¹¹ = 23123130083 is a prime.

It is a super-2 number, since 2×23123132131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23123132101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179536 + ... + 280141.

It is an arithmetic number, because the mean of its divisors is an integer number (1675526310).

Almost surely, 2^23123132131 is an apocalyptic number.

23123132131 is a deficient number, since it is larger than the sum of its proper divisors (3685288829).

23123132131 is a wasteful number, since it uses less digits than its factorization.

23123132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459974.

The product of its digits is 648, while the sum is 22.

Adding to 23123132131 its reverse (13123132132), we get a palindrome (36246264263).

Subtracting from 23123132131 its reverse (13123132132), we obtain a palindrome (9999999999).

It can be divided in two parts, 231231 and 32131, that added together give a palindrome (263362).

The spelling of 23123132131 in words is "twenty-three billion, one hundred twenty-three million, one hundred thirty-two thousand, one hundred thirty-one".