23131231132 has 12 divisors (see below), whose sum is σ = 40480935040. Its totient is φ = 11565249696.

The previous prime is 23131231121. The next prime is 23131231141. The reversal of 23131231132 is 23113213132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91408 + ... + 233704.

Almost surely, 2^23131231132 is an apocalyptic number.

It is an amenable number.

23131231132 is a deficient number, since it is larger than the sum of its proper divisors (17349703908).

23131231132 is a wasteful number, since it uses less digits than its factorization.

23131231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182940 (or 182938 counting only the distinct ones).

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

Adding to 23131231132 its reverse (23113213132), we get a palindrome (46244444264).

The spelling of 23131231132 in words is "twenty-three billion, one hundred thirty-one million, two hundred thirty-one thousand, one hundred thirty-two".