231104113 has 2 divisors, whose sum is σ = 231104114. Its totient is φ = 231104112.

The previous prime is 231104047. The next prime is 231104117. The reversal of 231104113 is 311401132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115928289 + 115175824 = 10767^2 + 10732^2 .

It is a cyclic number.

It is not a de Polignac number, because 231104113 - 2⁹ = 231103601 is a prime.

It is a super-2 number, since 2×231104113² = 106818222091033538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231104117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115552056 + 115552057.

It is an arithmetic number, because the mean of its divisors is an integer number (115552057).

Almost surely, 2^231104113 is an apocalyptic number.

It is an amenable number.

231104113 is a deficient number, since it is larger than the sum of its proper divisors (1).

231104113 is an equidigital number, since it uses as much as digits as its factorization.

231104113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 231104113 is about 15202.1088339743. The cubic root of 231104113 is about 613.6714113269.

Adding to 231104113 its reverse (311401132), we get a palindrome (542505245).

The spelling of 231104113 in words is "two hundred thirty-one million, one hundred four thousand, one hundred thirteen".