113231400397 has 2 divisors, whose sum is σ = 113231400398. Its totient is φ = 113231400396.

The previous prime is 113231400377. The next prime is 113231400419. The reversal of 113231400397 is 793004132311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79715310921 + 33516089476 = 282339^2 + 183074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113231400397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113231400377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56615700198 + 56615700199.

It is an arithmetic number, because the mean of its divisors is an integer number (56615700199).

Almost surely, 2^113231400397 is an apocalyptic number.

It is an amenable number.

113231400397 is a deficient number, since it is larger than the sum of its proper divisors (1).

113231400397 is an equidigital number, since it uses as much as digits as its factorization.

113231400397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 113231400397 in words is "one hundred thirteen billion, two hundred thirty-one million, four hundred thousand, three hundred ninety-seven".