231113853 has 12 divisors (see below), whose sum is σ = 351401440. Its totient is φ = 145966536.

The previous prime is 231113851. The next prime is 231113893. The reversal of 231113853 is 358311132.

It is not a de Polignac number, because 231113853 - 2¹ = 231113851 is a prime.

It is a super-2 number, since 2×231113853² = 106827226097011218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231113851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 675601 + ... + 675942.

Almost surely, 2^231113853 is an apocalyptic number.

It is an amenable number.

231113853 is a deficient number, since it is larger than the sum of its proper divisors (120287587).

231113853 is a wasteful number, since it uses less digits than its factorization.

231113853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351568 (or 1351565 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 231113853 is about 15202.4291808908. The cubic root of 231113853 is about 613.6800323700.

Adding to 231113853 its reverse (358311132), we get a palindrome (589424985).

The spelling of 231113853 in words is "two hundred thirty-one million, one hundred thirteen thousand, eight hundred fifty-three".