1313302010021 has 8 divisors (see below), whose sum is σ = 1390684869720. Its totient is φ = 1235933572608.

The previous prime is 1313302009997. The next prime is 1313302010047. The reversal of 1313302010021 is 1200102033131.

It can be written as a sum of positive squares in 4 ways, for example, as 237206987521 + 1076095022500 = 487039^2 + 1037350^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1313302010021 - 2²² = 1313297815717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313302010921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3417806 + ... + 3782591.

It is an arithmetic number, because the mean of its divisors is an integer number (173835608715).

Almost surely, 2^{1313302010021} is an apocalyptic number.

It is an amenable number.

1313302010021 is a deficient number, since it is larger than the sum of its proper divisors (77382859699).

1313302010021 is a wasteful number, since it uses less digits than its factorization.

1313302010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7211143.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1313302010021 its reverse (1200102033131), we get a palindrome (2513404043152).

The spelling of 1313302010021 in words is "one trillion, three hundred thirteen billion, three hundred two million, ten thousand, twenty-one".