113231431211 has 2 divisors, whose sum is σ = 113231431212. Its totient is φ = 113231431210.

The previous prime is 113231431163. The next prime is 113231431273. The reversal of 113231431211 is 112134132311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113231431211 - 2²⁶ = 113164322347 is a prime.

It is not a weakly prime, because it can be changed into another prime (113231431111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56615715605 + 56615715606.

It is an arithmetic number, because the mean of its divisors is an integer number (56615715606).

Almost surely, 2^113231431211 is an apocalyptic number.

113231431211 is a deficient number, since it is larger than the sum of its proper divisors (1).

113231431211 is an equidigital number, since it uses as much as digits as its factorization.

113231431211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 23.

Adding to 113231431211 its reverse (112134132311), we get a palindrome (225365563522).

The spelling of 113231431211 in words is "one hundred thirteen billion, two hundred thirty-one million, four hundred thirty-one thousand, two hundred eleven".