13304115021 has 4 divisors (see below), whose sum is σ = 17738820032. Its totient is φ = 8869410012.

The previous prime is 13304115007. The next prime is 13304115053. The reversal of 13304115021 is 12051140331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12051140331 = 3 ⋅4017046777.

It is not a de Polignac number, because 13304115021 - 2¹¹ = 13304112973 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 (13304115061) 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, 2217352501 + ... + 2217352506.

It is an arithmetic number, because the mean of its divisors is an integer number (4434705008).

Almost surely, 2^13304115021 is an apocalyptic number.

It is an amenable number.

13304115021 is a deficient number, since it is larger than the sum of its proper divisors (4434705011).

13304115021 is an equidigital number, since it uses as much as digits as its factorization.

13304115021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4434705010.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 13304115021 its reverse (12051140331), we get a palindrome (25355255352).

The spelling of 13304115021 in words is "thirteen billion, three hundred four million, one hundred fifteen thousand, twenty-one".