1316112831 has 48 divisors (see below), whose sum is σ = 2180355840. Its totient is φ = 757215360.

The previous prime is 1316112803. The next prime is 1316112869. The reversal of 1316112831 is 1382116131.

1316112831 is a `hidden beast` number, since 13 + 1 + 611 + 2 + 8 + 31 = 666.

It is not a de Polignac number, because 1316112831 - 2⁵ = 1316112799 is a prime.

It is a super-2 number, since 2×1316112831² = 3464305967845669122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1316112795 and 1316112804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316114831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 309840 + ... + 314058.

It is an arithmetic number, because the mean of its divisors is an integer number (45424080).

Almost surely, 2^1316112831 is an apocalyptic number.

1316112831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1316112831 is a deficient number, since it is larger than the sum of its proper divisors (864243009).

1316112831 is a wasteful number, since it uses less digits than its factorization.

1316112831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396 (or 4393 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1316112831 is about 36278.2694047001. The cubic root of 1316112831 is about 1095.8834654077.

Adding to 1316112831 its reverse (1382116131), we get a palindrome (2698228962).

The spelling of 1316112831 in words is "one billion, three hundred sixteen million, one hundred twelve thousand, eight hundred thirty-one".