23131001012 has 48 divisors (see below), whose sum is σ = 47134144512. Its totient is φ = 9728140800.

The previous prime is 23131000969. The next prime is 23131001021. The reversal of 23131001012 is 21010013132.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283373 + ... + 355755.

It is an arithmetic number, because the mean of its divisors is an integer number (981961344).

Almost surely, 2^23131001012 is an apocalyptic number.

It is an amenable number.

23131001012 is an abundant number, since it is smaller than the sum of its proper divisors (24003143500).

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

23131001012 is a wasteful number, since it uses less digits than its factorization.

23131001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72608 (or 72606 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 23131001012 its reverse (21010013132), we get a palindrome (44141014144).

The spelling of 23131001012 in words is "twenty-three billion, one hundred thirty-one million, one thousand, twelve".