312131310310222 has 128 divisors (see below), whose sum is σ = 565565451292800. Its totient is φ = 128388967170048.

The previous prime is 312131310310163. The next prime is 312131310310231. The reversal of 312131310310222 is 222013013131213.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3032911438 + ... + 3033014350.

It is an arithmetic number, because the mean of its divisors is an integer number (4418480088225).

Almost surely, 2^{312131310310222} is an apocalyptic number.

312131310310222 is a deficient number, since it is larger than the sum of its proper divisors (253434140982578).

312131310310222 is a wasteful number, since it uses less digits than its factorization.

312131310310222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105127 (or 105101 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 312131310310222 its reverse (222013013131213), we get a palindrome (534144323441435).

The spelling of 312131310310222 in words is "three hundred twelve trillion, one hundred thirty-one billion, three hundred ten million, three hundred ten thousand, two hundred twenty-two".