12312020202031 has 32 divisors (see below), whose sum is σ = 14105746114560. Its totient is φ = 10643425766400.

The previous prime is 12312020201993. The next prime is 12312020202043. The reversal of 12312020202031 is 13020202021321.

It is a cyclic number.

It is not a de Polignac number, because 12312020202031 - 2⁷ = 12312020201903 is a prime.

It is a super-2 number, since 2×12312020202031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312020202061) 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, 46080135 + ... + 46346551.

It is an arithmetic number, because the mean of its divisors is an integer number (440804566080).

Almost surely, 2^{12312020202031} is an apocalyptic number.

12312020202031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12312020202031 is a deficient number, since it is larger than the sum of its proper divisors (1793725912529).

12312020202031 is a wasteful number, since it uses less digits than its factorization.

12312020202031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268815.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12312020202031 its reverse (13020202021321), we get a palindrome (25332222223352).

The spelling of 12312020202031 in words is "twelve trillion, three hundred twelve billion, twenty million, two hundred two thousand, thirty-one".