20113364923 has 4 divisors (see below), whose sum is σ = 20116317040. Its totient is φ = 20110412808.

The previous prime is 20113364917. The next prime is 20113364933. The reversal of 20113364923 is 32946331102.

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 20113364923 - 2²⁹ = 19576494011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113364933) 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, 1465815 + ... + 1479472.

It is an arithmetic number, because the mean of its divisors is an integer number (5029079260).

Almost surely, 2^20113364923 is an apocalyptic number.

20113364923 is a deficient number, since it is larger than the sum of its proper divisors (2952117).

20113364923 is an equidigital number, since it uses as much as digits as its factorization.

20113364923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952116.

The product of its (nonzero) digits is 23328, while the sum is 34.

The spelling of 20113364923 in words is "twenty billion, one hundred thirteen million, three hundred sixty-four thousand, nine hundred twenty-three".