230643960921 has 64 divisors (see below), whose sum is σ = 378502656000. Its totient is φ = 137644531200.

The previous prime is 230643960907. The next prime is 230643960929. The reversal of 230643960921 is 129069346032.

230643960921 is a `hidden beast` number, since 2 + 3 + 0 + 6 + 4 + 39 + 609 + 2 + 1 = 666.

It is not a de Polignac number, because 230643960921 - 2⁷ = 230643960793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230643960929) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5712876 + ... + 5753106.

It is an arithmetic number, because the mean of its divisors is an integer number (5914104000).

Almost surely, 2^230643960921 is an apocalyptic number.

It is an amenable number.

230643960921 is a deficient number, since it is larger than the sum of its proper divisors (147858695079).

230643960921 is a wasteful number, since it uses less digits than its factorization.

230643960921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40547 (or 40541 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The spelling of 230643960921 in words is "two hundred thirty billion, six hundred forty-three million, nine hundred sixty thousand, nine hundred twenty-one".