312323113303231 has 16 divisors (see below), whose sum is σ = 319751707023360. Its totient is φ = 304927279241760.

The previous prime is 312323113303199. The next prime is 312323113303237. The reversal of 312323113303231 is 132303311323213.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 312323113303231 - 2⁵ = 312323113303199 is a prime.

It is a super-2 number, since 2×312323113303231² (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 = 312323113303193 and 312323113303202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312323113303237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247241740 + ... + 248501758.

It is an arithmetic number, because the mean of its divisors is an integer number (19984481688960).

Almost surely, 2^{312323113303231} is an apocalyptic number.

312323113303231 is a deficient number, since it is larger than the sum of its proper divisors (7428593720129).

312323113303231 is a wasteful number, since it uses less digits than its factorization.

312323113303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273014.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 312323113303231 its reverse (132303311323213), we get a palindrome (444626424626444).

The spelling of 312323113303231 in words is "three hundred twelve trillion, three hundred twenty-three billion, one hundred thirteen million, three hundred three thousand, two hundred thirty-one".