13202012231321 has 4 divisors (see below), whose sum is σ = 13323131609700. Its totient is φ = 13080892852944.

The previous prime is 13202012231297. The next prime is 13202012231327. The reversal of 13202012231321 is 12313221020231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10044709696921 + 3157302534400 = 3169339^2 + 1776880^2 .

It is a cyclic number.

It is not a de Polignac number, because 13202012231321 - 2⁶ = 13202012231257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13202012231327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60559689026 + ... + 60559689243.

It is an arithmetic number, because the mean of its divisors is an integer number (3330782902425).

Almost surely, 2^{13202012231321} is an apocalyptic number.

It is an amenable number.

13202012231321 is a deficient number, since it is larger than the sum of its proper divisors (121119378379).

13202012231321 is a wasteful number, since it uses less digits than its factorization.

13202012231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121119378378.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13202012231321 its reverse (12313221020231), we get a palindrome (25515233251552).

The spelling of 13202012231321 in words is "thirteen trillion, two hundred two billion, twelve million, two hundred thirty-one thousand, three hundred twenty-one".