23131134421144 has 16 divisors (see below), whose sum is σ = 43370967533400. Its totient is φ = 11565543078912.

The previous prime is 23131134421141. The next prime is 23131134421177. The reversal of 23131134421144 is 44112443113132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131134421141) 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, 1445592 + ... + 6953560.

Almost surely, 2^{23131134421144} is an apocalyptic number.

It is an amenable number.

23131134421144 is a deficient number, since it is larger than the sum of its proper divisors (20239833112256).

23131134421144 is a wasteful number, since it uses less digits than its factorization.

23131134421144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032922 (or 6032918 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

Adding to 23131134421144 its reverse (44112443113132), we get a palindrome (67243577534276).

The spelling of 23131134421144 in words is "twenty-three trillion, one hundred thirty-one billion, one hundred thirty-four million, four hundred twenty-one thousand, one hundred forty-four".