23303302921 has 4 divisors (see below), whose sum is σ = 23304085200. Its totient is φ = 23302520644.

The previous prime is 23303302873. The next prime is 23303302927. The reversal of 23303302921 is 12920330332.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23303302921 - 2⁹ = 23303302409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23303302921.

It is not an unprimeable number, because it can be changed into a prime (23303302927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344611 + ... + 406648.

It is an arithmetic number, because the mean of its divisors is an integer number (5826021300).

Almost surely, 2^23303302921 is an apocalyptic number.

It is an amenable number.

23303302921 is a deficient number, since it is larger than the sum of its proper divisors (782279).

23303302921 is an equidigital number, since it uses as much as digits as its factorization.

23303302921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782278.

The product of its (nonzero) digits is 5832, while the sum is 28.

The spelling of 23303302921 in words is "twenty-three billion, three hundred three million, three hundred two thousand, nine hundred twenty-one".