20012113023 has 32 divisors (see below), whose sum is σ = 33330032640. Its totient is φ = 10415623680.

The previous prime is 20012113007. The next prime is 20012113049. The reversal of 20012113023 is 32031121002.

It is not a de Polignac number, because 20012113023 - 2⁴ = 20012113007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012112993 and 20012113011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012113123) 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, 893068 + ... + 915201.

It is an arithmetic number, because the mean of its divisors is an integer number (1041563520).

Almost surely, 2^20012113023 is an apocalyptic number.

20012113023 is a deficient number, since it is larger than the sum of its proper divisors (13317919617).

20012113023 is a wasteful number, since it uses less digits than its factorization.

20012113023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808327.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20012113023 its reverse (32031121002), we get a palindrome (52043234025).

The spelling of 20012113023 in words is "twenty billion, twelve million, one hundred thirteen thousand, twenty-three".