11312263031 has 16 divisors (see below), whose sum is σ = 11580109920. Its totient is φ = 11048378880.

The previous prime is 11312263021. The next prime is 11312263069. The reversal of 11312263031 is 13036221311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11312263031 is a prime.

It is a super-2 number, since 2×11312263031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11312262988 and 11312263006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312263021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2570525 + ... + 2574921.

It is an arithmetic number, because the mean of its divisors is an integer number (723756870).

Almost surely, 2^11312263031 is an apocalyptic number.

11312263031 is a deficient number, since it is larger than the sum of its proper divisors (267846889).

11312263031 is a wasteful number, since it uses less digits than its factorization.

11312263031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11312263031 its reverse (13036221311), we get a palindrome (24348484342).

The spelling of 11312263031 in words is "eleven billion, three hundred twelve million, two hundred sixty-three thousand, thirty-one".