12031311313021 has 96 divisors (see below), whose sum is σ = 16416664475904. Its totient is φ = 8579587737600.

The previous prime is 12031311312983. The next prime is 12031311313067.

12031311313021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12031311313021 - 2¹⁹ = 12031310788733 is a prime.

It is a super-3 number, since 3×12031311313021³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12031311312983 and 12031311313001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031311313321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 602368791 + ... + 602388763.

It is an arithmetic number, because the mean of its divisors is an integer number (171006921624).

Almost surely, 2^{12031311313021} is an apocalyptic number.

12031311313021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12031311313021 is a deficient number, since it is larger than the sum of its proper divisors (4385353162883).

12031311313021 is a wasteful number, since it uses less digits than its factorization.

12031311313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20483 (or 20472 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Multiplying 12031311313021 by its sum of digits (22), we get a palindrome (264688848886462).

It can be divided in two parts, 1203131 and 1313021, that added together give a palindrome (2516152).

The spelling of 12031311313021 in words is "twelve trillion, thirty-one billion, three hundred eleven million, three hundred thirteen thousand, twenty-one".