312311103322 has 4 divisors (see below), whose sum is σ = 468466654986. Its totient is φ = 156155551660.

The previous prime is 312311103287. The next prime is 312311103343. The reversal of 312311103322 is 223301113213.

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

It can be written as a sum of positive squares in only one way, i.e., 231610225081 + 80700878241 = 481259^2 + 284079^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312311103293 and 312311103302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78077775829 + ... + 78077775832.

Almost surely, 2^312311103322 is an apocalyptic number.

312311103322 is a deficient number, since it is larger than the sum of its proper divisors (156155551664).

312311103322 is a wasteful number, since it uses less digits than its factorization.

312311103322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156155551663.

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

Adding to 312311103322 its reverse (223301113213), we get a palindrome (535612216535).

The spelling of 312311103322 in words is "three hundred twelve billion, three hundred eleven million, one hundred three thousand, three hundred twenty-two".