20000013023 has 4 divisors (see below), whose sum is σ = 20022561840. Its totient is φ = 19977464208.

The previous prime is 20000012999. The next prime is 20000013043. The reversal of 20000013023 is 32031000002.

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 20000013023 - 2¹⁸ = 19999750879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000012995 and 20000013013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000013043) 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, 11273078 + ... + 11274851.

It is an arithmetic number, because the mean of its divisors is an integer number (5005640460).

Almost surely, 2^20000013023 is an apocalyptic number.

20000013023 is a deficient number, since it is larger than the sum of its proper divisors (22548817).

20000013023 is an equidigital number, since it uses as much as digits as its factorization.

20000013023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22548816.

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20000013023 its reverse (32031000002), we get a palindrome (52031013025).

The spelling of 20000013023 in words is "twenty billion, thirteen thousand, twenty-three".