23321504451 has 32 divisors (see below), whose sum is σ = 37637291520. Its totient is φ = 12539552256.

The previous prime is 23321504429. The next prime is 23321504473. The reversal of 23321504451 is 15440512332.

It is an interprime number because it is at equal distance from previous prime (23321504429) and next prime (23321504473).

It is not a de Polignac number, because 23321504451 - 2¹⁴ = 23321488067 is a prime.

It is a super-2 number, since 2×23321504451² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23321504491) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2776480 + ... + 2784866.

It is an arithmetic number, because the mean of its divisors is an integer number (1176165360).

Almost surely, 2^23321504451 is an apocalyptic number.

23321504451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23321504451 is a deficient number, since it is larger than the sum of its proper divisors (14315787069).

23321504451 is a wasteful number, since it uses less digits than its factorization.

23321504451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16203.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 23321504451 in words is "twenty-three billion, three hundred twenty-one million, five hundred four thousand, four hundred fifty-one".