1312310322 has 24 divisors (see below), whose sum is σ = 2948648976. Its totient is φ = 437436612.

The previous prime is 1312310309. The next prime is 1312310323. The reversal of 1312310322 is 2230132131.

1312310322 is a `hidden beast` number, since 1 + 31 + 2 + 310 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1312310295 and 1312310304.

It is not an unprimeable number, because it can be changed into a prime (1312310323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1349628 + ... + 1350599.

It is an arithmetic number, because the mean of its divisors is an integer number (122860374).

Almost surely, 2^1312310322 is an apocalyptic number.

1312310322 is an abundant number, since it is smaller than the sum of its proper divisors (1636338654).

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

1312310322 is an equidigital number, since it uses as much as digits as its factorization.

1312310322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2700244 (or 2700232 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1312310322 is about 36225.8239657844. The cubic root of 1312310322 is about 1094.8270396735.

Adding to 1312310322 its reverse (2230132131), we get a palindrome (3542442453).

The spelling of 1312310322 in words is "one billion, three hundred twelve million, three hundred ten thousand, three hundred twenty-two".