23505042004 has 12 divisors (see below), whose sum is σ = 42922250784. Its totient is φ = 11241541784.

The previous prime is 23505041953. The next prime is 23505042013. The reversal of 23505042004 is 40024050532.

It is a self number, because there is not a number n which added to its sum of digits gives 23505042004.

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, 127744702 + ... + 127744885.

It is an arithmetic number, because the mean of its divisors is an integer number (3576854232).

Almost surely, 2^23505042004 is an apocalyptic number.

It is an amenable number.

23505042004 is a deficient number, since it is larger than the sum of its proper divisors (19417208780).

23505042004 is a wasteful number, since it uses less digits than its factorization.

23505042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255489614 (or 255489612 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 23505042004 its reverse (40024050532), we get a palindrome (63529092536).

The spelling of 23505042004 in words is "twenty-three billion, five hundred five million, forty-two thousand, four".