1313203313125 has 20 divisors (see below), whose sum is σ = 1790158765824. Its totient is φ = 955056950000.

The previous prime is 1313203313117. The next prime is 1313203313137. The reversal of 1313203313125 is 5213133023131.

It is a happy number.

It is not a de Polignac number, because 1313203313125 - 2³ = 1313203313117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313203313093 and 1313203313102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 95498821 + ... + 95512570.

Almost surely, 2^{1313203313125} is an apocalyptic number.

It is an amenable number.

1313203313125 is a deficient number, since it is larger than the sum of its proper divisors (476955452699).

1313203313125 is an equidigital number, since it uses as much as digits as its factorization.

1313203313125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191011422 (or 191011407 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 1313203313125 its reverse (5213133023131), we get a palindrome (6526336336256).

The spelling of 1313203313125 in words is "one trillion, three hundred thirteen billion, two hundred three million, three hundred thirteen thousand, one hundred twenty-five".