1312310922 has 32 divisors (see below), whose sum is σ = 2874432960. Its totient is φ = 396942720.

The previous prime is 1312310911. The next prime is 1312310927. The reversal of 1312310922 is 2290132131.

It is a junction number, because it is equal to n+sod(n) for n = 1312310892 and 1312310901.

It is not an unprimeable number, because it can be changed into a prime (1312310927) 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, 137979 + ... + 147182.

It is an arithmetic number, because the mean of its divisors is an integer number (89826030).

Almost surely, 2^1312310922 is an apocalyptic number.

1312310922 is an abundant number, since it is smaller than the sum of its proper divisors (1562122038).

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

1312310922 is a wasteful number, since it uses less digits than its factorization.

1312310922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285238.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1312310922 is about 36225.8322471686. The cubic root of 1312310922 is about 1094.8272065284.

The spelling of 1312310922 in words is "one billion, three hundred twelve million, three hundred ten thousand, nine hundred twenty-two".