113231604331 has 2 divisors, whose sum is σ = 113231604332. Its totient is φ = 113231604330.

The previous prime is 113231604323. The next prime is 113231604341. The reversal of 113231604331 is 133406132311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113231604331 - 2³ = 113231604323 is a prime.

It is a super-2 number, since 2×113231604331² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113231604331.

It is not a weakly prime, because it can be changed into another prime (113231604301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56615802165 + 56615802166.

It is an arithmetic number, because the mean of its divisors is an integer number (56615802166).

Almost surely, 2^113231604331 is an apocalyptic number.

113231604331 is a deficient number, since it is larger than the sum of its proper divisors (1).

113231604331 is an equidigital number, since it uses as much as digits as its factorization.

113231604331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 113231604331 its reverse (133406132311), we get a palindrome (246637736642).

The spelling of 113231604331 in words is "one hundred thirteen billion, two hundred thirty-one million, six hundred four thousand, three hundred thirty-one".