23131042004 has 24 divisors (see below), whose sum is σ = 46913666688. Its totient is φ = 9773678880.

The previous prime is 23131041961. The next prime is 23131042019. The reversal of 23131042004 is 40024013132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5815679 + ... + 5819654.

It is an arithmetic number, because the mean of its divisors is an integer number (1954736112).

Almost surely, 2^23131042004 is an apocalyptic number.

It is an amenable number.

23131042004 is an abundant number, since it is smaller than the sum of its proper divisors (23782624684).

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

23131042004 is a wasteful number, since it uses less digits than its factorization.

23131042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11635415 (or 11635413 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23131042004 its reverse (40024013132), we get a palindrome (63155055136).

The spelling of 23131042004 in words is "twenty-three billion, one hundred thirty-one million, forty-two thousand, four".