1113116631 has 16 divisors (see below), whose sum is σ = 1632465408. Its totient is φ = 674613720.

The previous prime is 1113116603. The next prime is 1113116647. The reversal of 1113116631 is 1366113111.

It is not a de Polignac number, because 1113116631 - 2⁶ = 1113116567 is a prime.

It is a super-2 number, since 2×1113116631² = 2478057268417580322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113186631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135391 + ... + 143376.

It is an arithmetic number, because the mean of its divisors is an integer number (102029088).

Almost surely, 2^1113116631 is an apocalyptic number.

1113116631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1113116631 is a deficient number, since it is larger than the sum of its proper divisors (519348777).

1113116631 is an equidigital number, since it uses as much as digits as its factorization.

1113116631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278803 (or 278781 counting only the distinct ones).

The product of its digits is 324, while the sum is 24.

The square root of 1113116631 is about 33363.4025692824. The cubic root of 1113116631 is about 1036.3669557569.

Adding to 1113116631 its reverse (1366113111), we get a palindrome (2479229742).

The spelling of 1113116631 in words is "one billion, one hundred thirteen million, one hundred sixteen thousand, six hundred thirty-one".