1313117020501 has 12 divisors (see below), whose sum is σ = 1554369926956. Its totient is φ = 1101916379520.

The previous prime is 1313117020499. The next prime is 1313117020529. The reversal of 1313117020501 is 1050207113131.

It can be written as a sum of positive squares in 2 ways, for example, as 205889062500 + 1107227958001 = 453750^2 + 1052249^2 .

It is not a de Polignac number, because 1313117020501 - 2¹ = 1313117020499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313117020561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 417390996 + ... + 417394141.

Almost surely, 2^{1313117020501} is an apocalyptic number.

1313117020501 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1313117020501 is a deficient number, since it is larger than the sum of its proper divisors (241252906455).

1313117020501 is a wasteful number, since it uses less digits than its factorization.

1313117020501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834785172 (or 834785161 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 25.

The spelling of 1313117020501 in words is "one trillion, three hundred thirteen billion, one hundred seventeen million, twenty thousand, five hundred one".