20431012023 has 16 divisors (see below), whose sum is σ = 30352492800. Its totient is φ = 13582727640.

The previous prime is 20431011989. The next prime is 20431012027. The reversal of 20431012023 is 32021013402.

It is not a de Polignac number, because 20431012023 - 2⁹ = 20431011511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20431011987 and 20431012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431012027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1044213 + ... + 1063598.

It is an arithmetic number, because the mean of its divisors is an integer number (1897030800).

Almost surely, 2^20431012023 is an apocalyptic number.

20431012023 is a deficient number, since it is larger than the sum of its proper divisors (9921480777).

20431012023 is a wasteful number, since it uses less digits than its factorization.

20431012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108179 (or 2108173 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20431012023 its reverse (32021013402), we get a palindrome (52452025425).

The spelling of 20431012023 in words is "twenty billion, four hundred thirty-one million, twelve thousand, twenty-three".