1313126262571 has 4 divisors (see below), whose sum is σ = 1313223379272. Its totient is φ = 1313029145872.

The previous prime is 1313126262557. The next prime is 1313126262619. The reversal of 1313126262571 is 1752626213131.

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

It is a cyclic number.

It is not a de Polignac number, because 1313126262571 - 2⁹ = 1313126262059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313126265571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48538066 + ... + 48565111.

It is an arithmetic number, because the mean of its divisors is an integer number (328305844818).

Almost surely, 2^{1313126262571} is an apocalyptic number.

1313126262571 is a deficient number, since it is larger than the sum of its proper divisors (97116701).

1313126262571 is an equidigital number, since it uses as much as digits as its factorization.

1313126262571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97116700.

The product of its digits is 90720, while the sum is 40.

The spelling of 1313126262571 in words is "one trillion, three hundred thirteen billion, one hundred twenty-six million, two hundred sixty-two thousand, five hundred seventy-one".