113120212031 has 2 divisors, whose sum is σ = 113120212032. Its totient is φ = 113120212030.

The previous prime is 113120211979. The next prime is 113120212063. The reversal of 113120212031 is 130212021311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113120212031 - 2²² = 113116017727 is a prime.

It is a super-2 number, since 2×113120212031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113120211031) 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 as a sum of consecutive naturals, namely, 56560106015 + 56560106016.

It is an arithmetic number, because the mean of its divisors is an integer number (56560106016).

Almost surely, 2^113120212031 is an apocalyptic number.

113120212031 is a deficient number, since it is larger than the sum of its proper divisors (1).

113120212031 is an equidigital number, since it uses as much as digits as its factorization.

113120212031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 113120212031 its reverse (130212021311), we get a palindrome (243332233342).

The spelling of 113120212031 in words is "one hundred thirteen billion, one hundred twenty million, two hundred twelve thousand, thirty-one".