231413113 has 4 divisors (see below), whose sum is σ = 231677860. Its totient is φ = 231148368.

The previous prime is 231413111. The next prime is 231413123. The reversal of 231413113 is 311314132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 122168809 + 109244304 = 11053^2 + 10452^2 .

It is a cyclic number.

It is not a de Polignac number, because 231413113 - 2¹ = 231413111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231413111) 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, 131058 + ... + 132811.

It is an arithmetic number, because the mean of its divisors is an integer number (57919465).

Almost surely, 2^231413113 is an apocalyptic number.

It is an amenable number.

231413113 is a deficient number, since it is larger than the sum of its proper divisors (264747).

231413113 is an equidigital number, since it uses as much as digits as its factorization.

231413113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264746.

The product of its digits is 216, while the sum is 19.

The square root of 231413113 is about 15212.2685027579. The cubic root of 231413113 is about 613.9447946277.

Adding to 231413113 its reverse (311314132), we get a palindrome (542727245).

The spelling of 231413113 in words is "two hundred thirty-one million, four hundred thirteen thousand, one hundred thirteen".