1312322122 has 8 divisors (see below), whose sum is σ = 1970604900. Its totient is φ = 655453824.

The previous prime is 1312322051. The next prime is 1312322131. The reversal of 1312322122 is 2212232131.

It can be written as a sum of positive squares in 2 ways, for example, as 1286728641 + 25593481 = 35871^2 + 5059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1312322122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351297 + ... + 355012.

Almost surely, 2^1312322122 is an apocalyptic number.

1312322122 is a deficient number, since it is larger than the sum of its proper divisors (658282778).

1312322122 is an equidigital number, since it uses as much as digits as its factorization.

1312322122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707240.

The product of its digits is 288, while the sum is 19.

The square root of 1312322122 is about 36225.9868326592. The cubic root of 1312322122 is about 1094.8303211434.

Adding to 1312322122 its reverse (2212232131), we get a palindrome (3524554253).

It can be divided in two parts, 13123 and 22122, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 1312322122 in words is "one billion, three hundred twelve million, three hundred twenty-two thousand, one hundred twenty-two".