113231131973 has 2 divisors, whose sum is σ = 113231131974. Its totient is φ = 113231131972.

The previous prime is 113231131969. The next prime is 113231132023. The reversal of 113231131973 is 379131132311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73931241409 + 39299890564 = 271903^2 + 198242^2 .

It is a cyclic number.

It is not a de Polignac number, because 113231131973 - 2² = 113231131969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113231131913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56615565986 + 56615565987.

It is an arithmetic number, because the mean of its divisors is an integer number (56615565987).

Almost surely, 2^113231131973 is an apocalyptic number.

It is an amenable number.

113231131973 is a deficient number, since it is larger than the sum of its proper divisors (1).

113231131973 is an equidigital number, since it uses as much as digits as its factorization.

113231131973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206, while the sum is 35.

The spelling of 113231131973 in words is "one hundred thirteen billion, two hundred thirty-one million, one hundred thirty-one thousand, nine hundred seventy-three".