1321160313 has 32 divisors (see below), whose sum is σ = 1939779072. Its totient is φ = 793209600.

The previous prime is 1321160207. The next prime is 1321160317. The reversal of 1321160313 is 3130611231.

It is not a de Polignac number, because 1321160313 - 2¹³ = 1321152121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321160313.

It is not an unprimeable number, because it can be changed into a prime (1321160317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2250406 + ... + 2250992.

It is an arithmetic number, because the mean of its divisors is an integer number (60618096).

Almost surely, 2^1321160313 is an apocalyptic number.

It is an amenable number.

1321160313 is a deficient number, since it is larger than the sum of its proper divisors (618618759).

1321160313 is a wasteful number, since it uses less digits than its factorization.

1321160313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1321160313 is about 36347.7690236966. The cubic root of 1321160313 is about 1097.2826351594.

Adding to 1321160313 its reverse (3130611231), we get a palindrome (4451771544).

The spelling of 1321160313 in words is "one billion, three hundred twenty-one million, one hundred sixty thousand, three hundred thirteen".