13300021021 has 4 divisors (see below), whose sum is σ = 15200024032. Its totient is φ = 11400018012.

The previous prime is 13300021019. The next prime is 13300021057. The reversal of 13300021021 is 12012000331.

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 not a de Polignac number, because 13300021021 - 2¹ = 13300021019 is a prime.

It is a Duffinian number.

13300021021 is a modest number, since divided by 21021 gives 13300 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 13300020992 and 13300021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13300021081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 950001495 + ... + 950001508.

It is an arithmetic number, because the mean of its divisors is an integer number (3800006008).

Almost surely, 2^13300021021 is an apocalyptic number.

It is an amenable number.

13300021021 is a deficient number, since it is larger than the sum of its proper divisors (1900003011).

13300021021 is an equidigital number, since it uses as much as digits as its factorization.

13300021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900003010.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13300021021 its reverse (12012000331), we get a palindrome (25312021352).

The spelling of 13300021021 in words is "thirteen billion, three hundred million, twenty-one thousand, twenty-one".