12031444132313 has 4 divisors (see below), whose sum is σ = 12031452146148. Its totient is φ = 12031436118480.

The previous prime is 12031444132303. The next prime is 12031444132403. The reversal of 12031444132313 is 31323144413021.

12031444132313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5792479257049 + 6238964875264 = 2406757^2 + 2497792^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031444132313 - 2²⁴ = 12031427355097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12031444132313.

It is not an unprimeable number, because it can be changed into a prime (12031444132303) 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, 1005506 + ... + 5007387.

It is an arithmetic number, because the mean of its divisors is an integer number (3007863036537).

Almost surely, 2^{12031444132313} is an apocalyptic number.

It is an amenable number.

12031444132313 is a deficient number, since it is larger than the sum of its proper divisors (8013835).

12031444132313 is an equidigital number, since it uses as much as digits as its factorization.

12031444132313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8013834.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 12031444132313 its reverse (31323144413021), we get a palindrome (43354588545334).

The spelling of 12031444132313 in words is "twelve trillion, thirty-one billion, four hundred forty-four million, one hundred thirty-two thousand, three hundred thirteen".