13353521230021 has 12 divisors (see below), whose sum is σ = 15534394428288. Its totient is φ = 11445354785592.

The previous prime is 13353521229977. The next prime is 13353521230033. The reversal of 13353521230021 is 12003212535331.

It is not a de Polignac number, because 13353521230021 - 2¹³ = 13353521221829 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 (13353521230921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5106741 + ... + 7265386.

It is an arithmetic number, because the mean of its divisors is an integer number (1294532869024).

Almost surely, 2^{13353521230021} is an apocalyptic number.

It is an amenable number.

13353521230021 is a deficient number, since it is larger than the sum of its proper divisors (2180873198267).

13353521230021 is a wasteful number, since it uses less digits than its factorization.

13353521230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12394168 (or 12394161 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 13353521230021 its reverse (12003212535331), we get a palindrome (25356733765352).

The spelling of 13353521230021 in words is "thirteen trillion, three hundred fifty-three billion, five hundred twenty-one million, two hundred thirty thousand, twenty-one".