1313201225 has 48 divisors (see below), whose sum is σ = 1950768000. Its totient is φ = 875931840.

The previous prime is 1313201213. The next prime is 1313201237. The reversal of 1313201225 is 5221023131.

It is an interprime number because it is at equal distance from previous prime (1313201213) and next prime (1313201237).

It is not a de Polignac number, because 1313201225 - 2⁸ = 1313200969 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1313201197 and 1313201206.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 315206 + ... + 319344.

It is an arithmetic number, because the mean of its divisors is an integer number (40641000).

Almost surely, 2^1313201225 is an apocalyptic number.

It is an amenable number.

1313201225 is a deficient number, since it is larger than the sum of its proper divisors (637566775).

1313201225 is an equidigital number, since it uses as much as digits as its factorization.

1313201225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207 (or 4188 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1313201225 is about 36238.1183976210. The cubic root of 1313201225 is about 1095.0747361818.

Adding to 1313201225 its reverse (5221023131), we get a palindrome (6534224356).

The spelling of 1313201225 in words is "one billion, three hundred thirteen million, two hundred one thousand, two hundred twenty-five".