23012042004 has 60 divisors (see below), whose sum is σ = 68752033504. Its totient is φ = 6574868496.

The previous prime is 23012042003. The next prime is 23012042017. The reversal of 23012042004 is 40024021032.

23012042004 is a `hidden beast` number, since 230 + 12 + 0 + 420 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012042003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5070934 + ... + 5075469.

Almost surely, 2^23012042004 is an apocalyptic number.

It is an amenable number.

23012042004 is an abundant number, since it is smaller than the sum of its proper divisors (45739991500).

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

23012042004 is a wasteful number, since it uses less digits than its factorization.

23012042004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146426 (or 10146415 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 23012042004 its reverse (40024021032), we get a palindrome (63036063036).

The spelling of 23012042004 in words is "twenty-three billion, twelve million, forty-two thousand, four".