1313261322 has 16 divisors (see below), whose sum is σ = 2781024192. Its totient is φ = 412003520.

The previous prime is 1313261281. The next prime is 1313261329. The reversal of 1313261322 is 2231623131.

It is a super-2 number, since 2×1313261322² = 3449310599722375368, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1313261292 and 1313261301.

It is not an unprimeable number, because it can be changed into a prime (1313261329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6437454 + ... + 6437657.

It is an arithmetic number, because the mean of its divisors is an integer number (173814012).

Almost surely, 2^1313261322 is an apocalyptic number.

1313261322 is an abundant number, since it is smaller than the sum of its proper divisors (1467762870).

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

1313261322 is a wasteful number, since it uses less digits than its factorization.

1313261322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12875133.

The product of its digits is 1296, while the sum is 24.

The square root of 1313261322 is about 36238.9475840566. The cubic root of 1313261322 is about 1095.0914408323.

Adding to 1313261322 its reverse (2231623131), we get a palindrome (3544884453).

The spelling of 1313261322 in words is "one billion, three hundred thirteen million, two hundred sixty-one thousand, three hundred twenty-two".