12311302032031 has 4 divisors (see below), whose sum is σ = 12311401922064. Its totient is φ = 12311202142000.

The previous prime is 12311302031971. The next prime is 12311302032047. The reversal of 12311302032031 is 13023020311321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12311302032031 - 2¹⁷ = 12311301900959 is a prime.

It is a super-2 number, since 2×12311302032031² (a number of 27 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 = 12311302031993 and 12311302032011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311302032061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49759915 + ... + 50006716.

It is an arithmetic number, because the mean of its divisors is an integer number (3077850480516).

Almost surely, 2^{12311302032031} is an apocalyptic number.

12311302032031 is a deficient number, since it is larger than the sum of its proper divisors (99890033).

12311302032031 is an equidigital number, since it uses as much as digits as its factorization.

12311302032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99890032.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12311302032031 its reverse (13023020311321), we get a palindrome (25334322343352).

The spelling of 12311302032031 in words is "twelve trillion, three hundred eleven billion, three hundred two million, thirty-two thousand, thirty-one".