13142225125021 has 4 divisors (see below), whose sum is σ = 13160008921600. Its totient is φ = 13124441328444.

The previous prime is 13142225124983. The next prime is 13142225125033. The reversal of 13142225125021 is 12052152224131.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13142225125021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13142225125321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8891897181 + ... + 8891898658.

It is an arithmetic number, because the mean of its divisors is an integer number (3290002230400).

Almost surely, 2^{13142225125021} is an apocalyptic number.

It is an amenable number.

13142225125021 is a deficient number, since it is larger than the sum of its proper divisors (17783796579).

13142225125021 is an equidigital number, since it uses as much as digits as its factorization.

13142225125021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17783796578.

The product of its (nonzero) digits is 9600, while the sum is 31.

Adding to 13142225125021 its reverse (12052152224131), we get a palindrome (25194377349152).

The spelling of 13142225125021 in words is "thirteen trillion, one hundred forty-two billion, two hundred twenty-five million, one hundred twenty-five thousand, twenty-one".