1313019407902 has 4 divisors (see below), whose sum is σ = 1969529111856. Its totient is φ = 656509703950.

The previous prime is 1313019407897. The next prime is 1313019407939. The reversal of 1313019407902 is 2097049103131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328254851974 + ... + 328254851977.

It is an arithmetic number, because the mean of its divisors is an integer number (492382277964).

Almost surely, 2^{1313019407902} is an apocalyptic number.

1313019407902 is a deficient number, since it is larger than the sum of its proper divisors (656509703954).

1313019407902 is an equidigital number, since it uses as much as digits as its factorization.

1313019407902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656509703953.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 1313019407902 in words is "one trillion, three hundred thirteen billion, nineteen million, four hundred seven thousand, nine hundred two".