23131131233142 has 16 divisors (see below), whose sum is σ = 46274635408320. Its totient is φ = 7708314920712.

The previous prime is 23131131233137. The next prime is 23131131233143. The reversal of 23131131233142 is 24133213113132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131131233143) 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, 515514948 + ... + 515559815.

It is an arithmetic number, because the mean of its divisors is an integer number (2892164713020).

Almost surely, 2^{23131131233142} is an apocalyptic number.

23131131233142 is an abundant number, since it is smaller than the sum of its proper divisors (23143504175178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23131131233142 is a wasteful number, since it uses less digits than its factorization.

23131131233142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031078507.

The product of its digits is 7776, while the sum is 30.

Adding to 23131131233142 its reverse (24133213113132), we get a palindrome (47264344346274).

The spelling of 23131131233142 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred forty-two".