1313412525021 has 4 divisors (see below), whose sum is σ = 1751216700032. Its totient is φ = 875608350012.

The previous prime is 1313412525011. The next prime is 1313412525023. The reversal of 1313412525021 is 1205252143131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1313412525021 - 2¹⁴ = 1313412508637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313412525021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313412525023) 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, 218902087501 + ... + 218902087506.

It is an arithmetic number, because the mean of its divisors is an integer number (437804175008).

Almost surely, 2^{1313412525021} is an apocalyptic number.

It is an amenable number.

1313412525021 is a deficient number, since it is larger than the sum of its proper divisors (437804175011).

1313412525021 is an equidigital number, since it uses as much as digits as its factorization.

1313412525021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437804175010.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 1313412525021 its reverse (1205252143131), we get a palindrome (2518664668152).

The spelling of 1313412525021 in words is "one trillion, three hundred thirteen billion, four hundred twelve million, five hundred twenty-five thousand, twenty-one".