23004221004 has 18 divisors (see below), whose sum is σ = 58149558740. Its totient is φ = 7668073656.

The previous prime is 23004221003. The next prime is 23004221077. The reversal of 23004221004 is 40012240032.

23004221004 is a `hidden beast` number, since 230 + 0 + 422 + 10 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is not an unprimeable number, because it can be changed into a prime (23004221003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 319503034 + ... + 319503105.

Almost surely, 2^23004221004 is an apocalyptic number.

It is an amenable number.

23004221004 is an abundant number, since it is smaller than the sum of its proper divisors (35145337736).

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

23004221004 is a wasteful number, since it uses less digits than its factorization.

23004221004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639006149 (or 639006144 counting only the distinct ones).

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

Adding to 23004221004 its reverse (40012240032), we get a palindrome (63016461036).

The spelling of 23004221004 in words is "twenty-three billion, four million, two hundred twenty-one thousand, four".