13333113020021 has 4 divisors (see below), whose sum is σ = 13333248190944. Its totient is φ = 13332977849100.

The previous prime is 13333113019997. The next prime is 13333113020053. The reversal of 13333113020021 is 12002031133331.

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-13333113020021 is a prime.

It is a super-2 number, since 2×13333113020021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13333113026021) 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, 67437395 + ... + 67634816.

It is an arithmetic number, because the mean of its divisors is an integer number (3333312047736).

Almost surely, 2^{13333113020021} is an apocalyptic number.

It is an amenable number.

13333113020021 is a deficient number, since it is larger than the sum of its proper divisors (135170923).

13333113020021 is an equidigital number, since it uses as much as digits as its factorization.

13333113020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135170922.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 13333113020021 its reverse (12002031133331), we get a palindrome (25335144153352).

The spelling of 13333113020021 in words is "thirteen trillion, three hundred thirty-three billion, one hundred thirteen million, twenty thousand, twenty-one".