1313320225 has 24 divisors (see below), whose sum is σ = 1864408448. Its totient is φ = 898992000.

The previous prime is 1313320207. The next prime is 1313320237. The reversal of 1313320225 is 5220233131.

It is a de Polignac number, because none of the positive numbers 2^k-1313320225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313320196 and 1313320205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98932 + ... + 111418.

Almost surely, 2^1313320225 is an apocalyptic number.

It is an amenable number.

1313320225 is a deficient number, since it is larger than the sum of its proper divisors (551088223).

1313320225 is a wasteful number, since it uses less digits than its factorization.

1313320225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13105 (or 13100 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1313320225 is about 36239.7602779047. The cubic root of 1313320225 is about 1095.1078131023.

Adding to 1313320225 its reverse (5220233131), we get a palindrome (6533553356).

The spelling of 1313320225 in words is "one billion, three hundred thirteen million, three hundred twenty thousand, two hundred twenty-five".