1113685831 has 4 divisors (see below), whose sum is σ = 1127783200. Its totient is φ = 1099588464.

The previous prime is 1113685813. The next prime is 1113685841. The reversal of 1113685831 is 1385863111.

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

It is a cyclic number.

It is not a de Polignac number, because 1113685831 - 2⁵ = 1113685799 is a prime.

It is a super-2 number, since 2×1113685831² = 2480592260340321122, 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 (1113685841) 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, 7048566 + ... + 7048723.

It is an arithmetic number, because the mean of its divisors is an integer number (281945800).

Almost surely, 2^1113685831 is an apocalyptic number.

1113685831 is a deficient number, since it is larger than the sum of its proper divisors (14097369).

1113685831 is an equidigital number, since it uses as much as digits as its factorization.

1113685831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14097368.

The product of its digits is 17280, while the sum is 37.

The square root of 1113685831 is about 33371.9317840607. The cubic root of 1113685831 is about 1036.5435768265.

The spelling of 1113685831 in words is "one billion, one hundred thirteen million, six hundred eighty-five thousand, eight hundred thirty-one".