1313311322 has 4 divisors (see below), whose sum is σ = 1969966986. Its totient is φ = 656655660.

The previous prime is 1313311291. The next prime is 1313311393. The reversal of 1313311322 is 2231133131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2231133131 = 43 ⋅51886817.

It can be written as a sum of positive squares in only one way, i.e., 1208883361 + 104427961 = 34769^2 + 10219^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1313311294 and 1313311303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328327829 + ... + 328327832.

Almost surely, 2^1313311322 is an apocalyptic number.

1313311322 is a deficient number, since it is larger than the sum of its proper divisors (656655664).

1313311322 is an equidigital number, since it uses as much as digits as its factorization.

1313311322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656655663.

The product of its digits is 324, while the sum is 20.

The square root of 1313311322 is about 36239.6374429988. The cubic root of 1313311322 is about 1095.1053385175.

Adding to 1313311322 its reverse (2231133131), we get a palindrome (3544444453).

The spelling of 1313311322 in words is "one billion, three hundred thirteen million, three hundred eleven thousand, three hundred twenty-two".