12113812631 has 2 divisors, whose sum is σ = 12113812632. Its totient is φ = 12113812630.

The previous prime is 12113812603. The next prime is 12113812643. The reversal of 12113812631 is 13621831121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12113812631 is a prime.

It is a super-2 number, since 2×12113812631² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12113812594 and 12113812603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12113812231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056906315 + 6056906316.

It is an arithmetic number, because the mean of its divisors is an integer number (6056906316).

Almost surely, 2^12113812631 is an apocalyptic number.

12113812631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113812631 is an equidigital number, since it uses as much as digits as its factorization.

12113812631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 29.

The spelling of 12113812631 in words is "twelve billion, one hundred thirteen million, eight hundred twelve thousand, six hundred thirty-one".