11312331031 has 8 divisors (see below), whose sum is σ = 11370744000. Its totient is φ = 11254010880.

The previous prime is 11312331007. The next prime is 11312331059. The reversal of 11312331031 is 13013321311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11312331031 - 2²³ = 11303942423 is a prime.

It is a super-2 number, since 2×11312331031² (a number of 21 digits) 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 (11312331061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228151 + ... + 273271.

It is an arithmetic number, because the mean of its divisors is an integer number (1421343000).

Almost surely, 2^11312331031 is an apocalyptic number.

11312331031 is a deficient number, since it is larger than the sum of its proper divisors (58412969).

11312331031 is a wasteful number, since it uses less digits than its factorization.

11312331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46409.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11312331031 its reverse (13013321311), we get a palindrome (24325652342).

The spelling of 11312331031 in words is "eleven billion, three hundred twelve million, three hundred thirty-one thousand, thirty-one".