23121008 has 20 divisors (see below), whose sum is σ = 45430128. Its totient is φ = 11397120.

The previous prime is 23120989. The next prime is 23121011. The reversal of 23121008 is 80012132.

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, 9041 + ... + 11312.

Almost surely, 2^23121008 is an apocalyptic number.

It is an amenable number.

23121008 is a deficient number, since it is larger than the sum of its proper divisors (22309120).

23121008 is a wasteful number, since it uses less digits than its factorization.

23121008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20432 (or 20426 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 23121008 is about 4808.4309291077. The cubic root of 23121008 is about 284.8845659532.

The spelling of 23121008 in words is "twenty-three million, one hundred twenty-one thousand, eight".