1113831 has 10 divisors (see below), whose sum is σ = 1663992. Its totient is φ = 742500.

The previous prime is 1113809. The next prime is 1113859. The reversal of 1113831 is 1383111.

It is a happy number.

It is not a de Polignac number, because 1113831 - 2⁷ = 1113703 is a prime.

It is a super-2 number, since 2×1113831² = 2481238993122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112831) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6795 + ... + 6956.

2^1113831 is an apocalyptic number.

1113831 is a deficient number, since it is larger than the sum of its proper divisors (550161).

1113831 is an equidigital number, since it uses as much as digits as its factorization.

1113831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13763 (or 13754 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1113831 is about 1055.3819213915. The cubic root of 1113831 is about 103.6588612704.

Adding to 1113831 its reverse (1383111), we get a palindrome (2496942).

The spelling of 1113831 in words is "one million, one hundred thirteen thousand, eight hundred thirty-one".