1313303120 has 20 divisors (see below), whose sum is σ = 3053429940. Its totient is φ = 525321216.

The previous prime is 1313303083. The next prime is 1313303137. The reversal of 1313303120 is 213033131.

It can be written as a sum of positive squares in 2 ways, for example, as 695482384 + 617820736 = 26372^2 + 24856^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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, 8208065 + ... + 8208224.

It is an arithmetic number, because the mean of its divisors is an integer number (152671497).

Almost surely, 2^1313303120 is an apocalyptic number.

1313303120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313303120 is an abundant number, since it is smaller than the sum of its proper divisors (1740126820).

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

1313303120 is a wasteful number, since it uses less digits than its factorization.

1313303120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16416302 (or 16416296 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1313303120 is about 36239.5242794383. The cubic root of 1313303120 is about 1095.1030587654.

Adding to 1313303120 its reverse (213033131), we get a palindrome (1526336251).

The spelling of 1313303120 in words is "one billion, three hundred thirteen million, three hundred three thousand, one hundred twenty".