12031020103331 has 4 divisors (see below), whose sum is σ = 12031042502472. Its totient is φ = 12030997704192.

The previous prime is 12031020103261. The next prime is 12031020103337. The reversal of 12031020103331 is 13330102013021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12031020103331 - 2¹⁸ = 12031019841187 is a prime.

It is a super-2 number, since 2×12031020103331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031020103337) 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, 10373585 + ... + 11474898.

It is an arithmetic number, because the mean of its divisors is an integer number (3007760625618).

Almost surely, 2^{12031020103331} is an apocalyptic number.

12031020103331 is a deficient number, since it is larger than the sum of its proper divisors (22399141).

12031020103331 is an equidigital number, since it uses as much as digits as its factorization.

12031020103331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22399140.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12031020103331 its reverse (13330102013021), we get a palindrome (25361122116352).

The spelling of 12031020103331 in words is "twelve trillion, thirty-one billion, twenty million, one hundred three thousand, three hundred thirty-one".