12031000031023 has 16 divisors (see below), whose sum is σ = 12117304419840. Its totient is φ = 11944990915200.

The previous prime is 12031000031021. The next prime is 12031000031087. The reversal of 12031000031023 is 32013000013021.

It is a cyclic number.

It is not a de Polignac number, because 12031000031023 - 2¹ = 12031000031021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031000030988 and 12031000031006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031000031021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286642983 + ... + 286684951.

It is an arithmetic number, because the mean of its divisors is an integer number (757331526240).

Almost surely, 2^{12031000031023} is an apocalyptic number.

12031000031023 is a deficient number, since it is larger than the sum of its proper divisors (86304388817).

12031000031023 is a wasteful number, since it uses less digits than its factorization.

12031000031023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45438.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12031000031023 its reverse (32013000013021), we get a palindrome (44044000044044).

The spelling of 12031000031023 in words is "twelve trillion, thirty-one billion, thirty-one thousand, twenty-three".