13030033021 has 4 divisors (see below), whose sum is σ = 13091786944. Its totient is φ = 12968279100.

The previous prime is 13030033001. The next prime is 13030033043. The reversal of 13030033021 is 12033003031.

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 13030033021 - 2²⁵ = 12996478589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13030032986 and 13030033004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030033001) 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, 30876645 + ... + 30877066.

It is an arithmetic number, because the mean of its divisors is an integer number (3272946736).

Almost surely, 2^13030033021 is an apocalyptic number.

It is an amenable number.

13030033021 is a deficient number, since it is larger than the sum of its proper divisors (61753923).

13030033021 is an equidigital number, since it uses as much as digits as its factorization.

13030033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61753922.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 13030033021 its reverse (12033003031), we get a palindrome (25063036052).

The spelling of 13030033021 in words is "thirteen billion, thirty million, thirty-three thousand, twenty-one".