13330133333021 has 4 divisors (see below), whose sum is σ = 13342840801500. Its totient is φ = 13317425864544.

The previous prime is 13330133332973. The next prime is 13330133333087. The reversal of 13330133333021 is 12033333103331.

It is a happy number.

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 6493634124121 + 6836499208900 = 2548261^2 + 2614670^2 .

It is a cyclic number.

It is not a de Polignac number, because 13330133333021 - 2¹⁰ = 13330133331997 is a prime.

It is a super-2 number, since 2×13330133333021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330133333921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6353732666 + ... + 6353734763.

It is an arithmetic number, because the mean of its divisors is an integer number (3335710200375).

Almost surely, 2^{13330133333021} is an apocalyptic number.

It is an amenable number.

13330133333021 is a deficient number, since it is larger than the sum of its proper divisors (12707468479).

13330133333021 is a wasteful number, since it uses less digits than its factorization.

13330133333021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12707468478.

The product of its (nonzero) digits is 13122, while the sum is 29.

Adding to 13330133333021 its reverse (12033333103331), we get a palindrome (25363466436352).

The spelling of 13330133333021 in words is "thirteen trillion, three hundred thirty billion, one hundred thirty-three million, three hundred thirty-three thousand, twenty-one".