23131032404 has 12 divisors (see below), whose sum is σ = 40535611200. Its totient is φ = 11549429208.

The previous prime is 23131032401. The next prime is 23131032409. The reversal of 23131032404 is 40423013132.

It is a self number, because there is not a number n which added to its sum of digits gives 23131032404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131032401) 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, 4018514 + ... + 4024265.

It is an arithmetic number, because the mean of its divisors is an integer number (3377967600).

Almost surely, 2^23131032404 is an apocalyptic number.

It is an amenable number.

23131032404 is a deficient number, since it is larger than the sum of its proper divisors (17404578796).

23131032404 is a wasteful number, since it uses less digits than its factorization.

23131032404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8043502 (or 8043500 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23131032404 its reverse (40423013132), we get a palindrome (63554045536).

The spelling of 23131032404 in words is "twenty-three billion, one hundred thirty-one million, thirty-two thousand, four hundred four".