13203030021 has 8 divisors (see below), whose sum is σ = 17604571680. Its totient is φ = 8801754192.

The previous prime is 13203030017. The next prime is 13203030031. The reversal of 13203030021 is 12003030231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13203030021 - 2² = 13203030017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203030011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152410 + ... + 222788.

It is an arithmetic number, because the mean of its divisors is an integer number (2200571460).

Almost surely, 2^13203030021 is an apocalyptic number.

It is an amenable number.

13203030021 is a deficient number, since it is larger than the sum of its proper divisors (4401541659).

13203030021 is an equidigital number, since it uses as much as digits as its factorization.

13203030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132915.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 13203030021 its reverse (12003030231), we get a palindrome (25206060252).

The spelling of 13203030021 in words is "thirteen billion, two hundred three million, thirty thousand, twenty-one".