13296313180921 has 3 divisors (see below), whose sum is σ = 13296316827333. Its totient is φ = 13296309534510.

The previous prime is 13296313180919. The next prime is 13296313180949. The reversal of 13296313180921 is 12908131369231.

It is a happy number.

The square root of 13296313180921 is 3646411.

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 is not a de Polignac number, because 13296313180921 - 2¹ = 13296313180919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13296313180421) 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, 1823206 + ... + 5469616.

It is an arithmetic number, because the mean of its divisors is an integer number (4432105609111).

Almost surely, 2^{13296313180921} is an apocalyptic number.

13296313180921 is the 3646411-st square number.

13296313180921 is the 1823206-th centered octagonal number.

It is an amenable number.

13296313180921 is a deficient number, since it is larger than the sum of its proper divisors (3646412).

13296313180921 is an frugal number, since it uses more digits than its factorization.

13296313180921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292822 (or 3646411 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

Multiplying 13296313180921 by its sum of digits (49), we get a square (651519345865129 = 25524877²).

The spelling of 13296313180921 in words is "thirteen trillion, two hundred ninety-six billion, three hundred thirteen million, one hundred eighty thousand, nine hundred twenty-one".