12031116045 has 16 divisors (see below), whose sum is σ = 20730538752. Its totient is φ = 5923010880.

The previous prime is 12031116011. The next prime is 12031116049. The reversal of 12031116045 is 54061113021.

It is a happy number.

It is not a de Polignac number, because 12031116045 - 2²⁴ = 12014338829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031116049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30848821 + ... + 30849210.

It is an arithmetic number, because the mean of its divisors is an integer number (1295658672).

Almost surely, 2^12031116045 is an apocalyptic number.

12031116045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12031116045 is a deficient number, since it is larger than the sum of its proper divisors (8699422707).

12031116045 is a wasteful number, since it uses less digits than its factorization.

12031116045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61698052.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 12031116045 its reverse (54061113021), we get a palindrome (66092229066).

The spelling of 12031116045 in words is "twelve billion, thirty-one million, one hundred sixteen thousand, forty-five".