231113023397 has 2 divisors, whose sum is σ = 231113023398. Its totient is φ = 231113023396.

The previous prime is 231113023259. The next prime is 231113023439. The reversal of 231113023397 is 793320311132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161036874436 + 70076148961 = 401294^2 + 264719^2 .

It is a cyclic number.

It is not a de Polignac number, because 231113023397 - 2³⁰ = 230039281573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231112023397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115556511698 + 115556511699.

It is an arithmetic number, because the mean of its divisors is an integer number (115556511699).

Almost surely, 2^231113023397 is an apocalyptic number.

It is an amenable number.

231113023397 is a deficient number, since it is larger than the sum of its proper divisors (1).

231113023397 is an equidigital number, since it uses as much as digits as its factorization.

231113023397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 35.

The spelling of 231113023397 in words is "two hundred thirty-one billion, one hundred thirteen million, twenty-three thousand, three hundred ninety-seven".