231113199 has 4 divisors (see below), whose sum is σ = 308150936. Its totient is φ = 154075464.

The previous prime is 231113173. The next prime is 231113219. The reversal of 231113199 is 991311132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231113199 - 2⁵ = 231113167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231112199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38518864 + ... + 38518869.

It is an arithmetic number, because the mean of its divisors is an integer number (77037734).

Almost surely, 2^231113199 is an apocalyptic number.

231113199 is a deficient number, since it is larger than the sum of its proper divisors (77037737).

231113199 is an equidigital number, since it uses as much as digits as its factorization.

231113199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77037736.

The product of its digits is 1458, while the sum is 30.

The square root of 231113199 is about 15202.4076711553. The cubic root of 231113199 is about 613.6794535109.

The spelling of 231113199 in words is "two hundred thirty-one million, one hundred thirteen thousand, one hundred ninety-nine".