12311113031 has 8 divisors (see below), whose sum is σ = 14555010720. Its totient is φ = 10188507168.

The previous prime is 12311113013. The next prime is 12311113033. The reversal of 12311113031 is 13031111321.

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

It is not a de Polignac number, because 12311113031 - 2³⁰ = 11237371207 is a prime.

It is a super-2 number, since 2×12311113031² (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 (12311113033) 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, 30322736 + ... + 30323141.

It is an arithmetic number, because the mean of its divisors is an integer number (1819376340).

Almost surely, 2^12311113031 is an apocalyptic number.

12311113031 is a deficient number, since it is larger than the sum of its proper divisors (2243897689).

12311113031 is an equidigital number, since it uses as much as digits as its factorization.

12311113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60645913.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 12311113031 its reverse (13031111321), we get a palindrome (25342224352).

The spelling of 12311113031 in words is "twelve billion, three hundred eleven million, one hundred thirteen thousand, thirty-one".