312131013112231 has 8 divisors (see below), whose sum is σ = 317293831063440. Its totient is φ = 307009999355328.

The previous prime is 312131013112153. The next prime is 312131013112273. The reversal of 312131013112231 is 132211310131213.

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 312131013112231 - 2¹⁵ = 312131013079463 is a prime.

It is a super-2 number, since 2×312131013112231² (a number of 30 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 = 312131013112196 and 312131013112205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312131013115231) 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, 10451033521 + ... + 10451063386.

It is an arithmetic number, because the mean of its divisors is an integer number (39661728882930).

Almost surely, 2^{312131013112231} is an apocalyptic number.

312131013112231 is a deficient number, since it is larger than the sum of its proper divisors (5162817951209).

312131013112231 is a wasteful number, since it uses less digits than its factorization.

312131013112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20902097153.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 312131013112231 its reverse (132211310131213), we get a palindrome (444342323243444).

The spelling of 312131013112231 in words is "three hundred twelve trillion, one hundred thirty-one billion, thirteen million, one hundred twelve thousand, two hundred thirty-one".