12031431243213 has 8 divisors (see below), whose sum is σ = 16886219288800. Its totient is φ = 7598798679888.

The previous prime is 12031431243193. The next prime is 12031431243259. The reversal of 12031431243213 is 31234213413021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12031431243213 - 2³⁶ = 11962711766477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031431243113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105538870498 + ... + 105538870611.

It is an arithmetic number, because the mean of its divisors is an integer number (2110777411100).

Almost surely, 2^{12031431243213} is an apocalyptic number.

It is an amenable number.

12031431243213 is a deficient number, since it is larger than the sum of its proper divisors (4854788045587).

12031431243213 is a wasteful number, since it uses less digits than its factorization.

12031431243213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211077741131.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 12031431243213 its reverse (31234213413021), we get a palindrome (43265644656234).

The spelling of 12031431243213 in words is "twelve trillion, thirty-one billion, four hundred thirty-one million, two hundred forty-three thousand, two hundred thirteen".