23971304915 has 4 divisors (see below), whose sum is σ = 28765565904. Its totient is φ = 19177043928.

The previous prime is 23971304911. The next prime is 23971304963. The reversal of 23971304915 is 51940317932.

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

It is a cyclic number.

It is not a de Polignac number, because 23971304915 - 2² = 23971304911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23971304911) 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, 2397130487 + ... + 2397130496.

It is an arithmetic number, because the mean of its divisors is an integer number (7191391476).

Almost surely, 2^23971304915 is an apocalyptic number.

23971304915 is a deficient number, since it is larger than the sum of its proper divisors (4794260989).

23971304915 is an equidigital number, since it uses as much as digits as its factorization.

23971304915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4794260988.

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 23971304915 in words is "twenty-three billion, nine hundred seventy-one million, three hundred four thousand, nine hundred fifteen".