1116238631 has 4 divisors (see below), whose sum is σ = 1116718200. Its totient is φ = 1115759064.

The previous prime is 1116238601. The next prime is 1116238639. The reversal of 1116238631 is 1368326111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1368326111 = 29 ⋅47183659.

It is a cyclic number.

It is not a de Polignac number, because 1116238631 - 2¹⁸ = 1115976487 is a prime.

It is a super-2 number, since 2×1116238631² = 2491977362673508322, 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 (1116238639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236276 + ... + 240953.

It is an arithmetic number, because the mean of its divisors is an integer number (279179550).

Almost surely, 2^1116238631 is an apocalyptic number.

1116238631 is a deficient number, since it is larger than the sum of its proper divisors (479569).

1116238631 is an equidigital number, since it uses as much as digits as its factorization.

1116238631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479568.

The product of its digits is 5184, while the sum is 32.

The square root of 1116238631 is about 33410.1576021425. The cubic root of 1116238631 is about 1037.3349637523.

The spelling of 1116238631 in words is "one billion, one hundred sixteen million, two hundred thirty-eight thousand, six hundred thirty-one".