2112131302431 has 16 divisors (see below), whose sum is σ = 2821290298368. Its totient is φ = 1405530705600.

The previous prime is 2112131302397. The next prime is 2112131302441. The reversal of 2112131302431 is 1342031312112.

It is not a de Polignac number, because 2112131302431 - 2¹⁰ = 2112131301407 is a prime.

It is a super-2 number, since 2×2112131302431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112131302441) 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, 11051596 + ... + 11241086.

It is an arithmetic number, because the mean of its divisors is an integer number (176330643648).

Almost surely, 2^{2112131302431} is an apocalyptic number.

2112131302431 is a deficient number, since it is larger than the sum of its proper divisors (709158995937).

2112131302431 is a wasteful number, since it uses less digits than its factorization.

2112131302431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196222.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 2112131302431 its reverse (1342031312112), we get a palindrome (3454162614543).

The spelling of 2112131302431 in words is "two trillion, one hundred twelve billion, one hundred thirty-one million, three hundred two thousand, four hundred thirty-one".