23204515331 has 4 divisors (see below), whose sum is σ = 23831664432. Its totient is φ = 22577366232.

The previous prime is 23204515307. The next prime is 23204515361. The reversal of 23204515331 is 13351540232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23204515331 is a prime.

It is a super-2 number, since 2×23204515331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23204515294 and 23204515303.

It is not an unprimeable number, because it can be changed into a prime (23204515361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313574495 + ... + 313574568.

It is an arithmetic number, because the mean of its divisors is an integer number (5957916108).

Almost surely, 2^23204515331 is an apocalyptic number.

23204515331 is a deficient number, since it is larger than the sum of its proper divisors (627149101).

23204515331 is an equidigital number, since it uses as much as digits as its factorization.

23204515331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627149100.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 23204515331 in words is "twenty-three billion, two hundred four million, five hundred fifteen thousand, three hundred thirty-one".