1310202125 has 16 divisors (see below), whose sum is σ = 1636255296. Its totient is φ = 1047442000.

The previous prime is 1310202119. The next prime is 1310202149. The reversal of 1310202125 is 5212020131.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1310202125 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250790 + ... + 255960.

It is an arithmetic number, because the mean of its divisors is an integer number (102265956).

Almost surely, 2^1310202125 is an apocalyptic number.

It is an amenable number.

1310202125 is a deficient number, since it is larger than the sum of its proper divisors (326053171).

1310202125 is an equidigital number, since it uses as much as digits as its factorization.

1310202125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7213 (or 7203 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1310202125 is about 36196.7142845867. The cubic root of 1310202125 is about 1094.2404537818.

Adding to 1310202125 its reverse (5212020131), we get a palindrome (6522222256).

The spelling of 1310202125 in words is "one billion, three hundred ten million, two hundred two thousand, one hundred twenty-five".