12331031023 has 4 divisors (see below), whose sum is σ = 12342071560. Its totient is φ = 12319990488.

The previous prime is 12331031021. The next prime is 12331031029. The reversal of 12331031023 is 32013013321.

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 12331031023 - 2¹ = 12331031021 is a prime.

It is a super-3 number, since 3×12331031023³ (a number of 31 digits) contains 333 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 (12331031021) 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, 5518593 + ... + 5520826.

It is an arithmetic number, because the mean of its divisors is an integer number (3085517890).

Almost surely, 2^12331031023 is an apocalyptic number.

12331031023 is a deficient number, since it is larger than the sum of its proper divisors (11040537).

12331031023 is a wasteful number, since it uses less digits than its factorization.

12331031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11040536.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12331031023 its reverse (32013013321), we get a palindrome (44344044344).

It can be divided in two parts, 1233 and 1031023, that added together give a square (1032256 = 1016²).

The spelling of 12331031023 in words is "twelve billion, three hundred thirty-one million, thirty-one thousand, twenty-three".