20231231003013 has 4 divisors (see below), whose sum is σ = 26974974670688. Its totient is φ = 13487487335340.

The previous prime is 20231231002999. The next prime is 20231231003021. The reversal of 20231231003013 is 31030013213202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20231231003013 - 2⁵ = 20231231002981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231231003083) 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, 3371871833833 + ... + 3371871833838.

It is an arithmetic number, because the mean of its divisors is an integer number (6743743667672).

Almost surely, 2^{20231231003013} is an apocalyptic number.

It is an amenable number.

20231231003013 is a deficient number, since it is larger than the sum of its proper divisors (6743743667675).

20231231003013 is an equidigital number, since it uses as much as digits as its factorization.

20231231003013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6743743667674.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20231231003013 its reverse (31030013213202), we get a palindrome (51261244216215).

The spelling of 20231231003013 in words is "twenty trillion, two hundred thirty-one billion, two hundred thirty-one million, three thousand, thirteen".