13295219280121 has 3 divisors (see below), whose sum is σ = 13295222926383. Its totient is φ = 13295215633860.

The previous prime is 13295219280113. The next prime is 13295219280149. The reversal of 13295219280121 is 12108291259231.

It is a happy number.

The square root of 13295219280121 is 3646261.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 57701324521 + 13237517955600 = 240211^2 + 3638340^2 .

It is not a de Polignac number, because 13295219280121 - 2³ = 13295219280113 is a prime.

It is a super-2 number, since 2×13295219280121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13295219280151) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1823131 + ... + 5469391.

It is an arithmetic number, because the mean of its divisors is an integer number (4431740975461).

Almost surely, 2^{13295219280121} is an apocalyptic number.

13295219280121 is the 3646261-st square number.

13295219280121 is the 1823131-st centered octagonal number.

It is an amenable number.

13295219280121 is a deficient number, since it is larger than the sum of its proper divisors (3646262).

13295219280121 is an frugal number, since it uses more digits than its factorization.

13295219280121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292522 (or 3646261 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 46.

The spelling of 13295219280121 in words is "thirteen trillion, two hundred ninety-five billion, two hundred nineteen million, two hundred eighty thousand, one hundred twenty-one".