312031113222 has 32 divisors (see below), whose sum is σ = 660876445152. Its totient is φ = 97876606464.

The previous prime is 312031113161. The next prime is 312031113227. The reversal of 312031113222 is 222311130213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312031113227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413388 + ... + 891600.

It is an arithmetic number, because the mean of its divisors is an integer number (20652388911).

Almost surely, 2^312031113222 is an apocalyptic number.

312031113222 is an abundant number, since it is smaller than the sum of its proper divisors (348845331930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312031113222 is a wasteful number, since it uses less digits than its factorization.

312031113222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484632.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 312031113222 its reverse (222311130213), we get a palindrome (534342243435).

The spelling of 312031113222 in words is "three hundred twelve billion, thirty-one million, one hundred thirteen thousand, two hundred twenty-two".