12031233300021 has 32 divisors (see below), whose sum is σ = 17296732938240. Its totient is φ = 7394789755584.

The previous prime is 12031233300019. The next prime is 12031233300061. The reversal of 12031233300021 is 12000333213021.

It is not a de Polignac number, because 12031233300021 - 2¹ = 12031233300019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031233300061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175740220 + ... + 175808666.

It is an arithmetic number, because the mean of its divisors is an integer number (540522904320).

Almost surely, 2^{12031233300021} is an apocalyptic number.

It is an amenable number.

12031233300021 is a deficient number, since it is larger than the sum of its proper divisors (5265499638219).

12031233300021 is a wasteful number, since it uses less digits than its factorization.

12031233300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73905.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12031233300021 its reverse (12000333213021), we get a palindrome (24031566513042).

The spelling of 12031233300021 in words is "twelve trillion, thirty-one billion, two hundred thirty-three million, three hundred thousand, twenty-one".