20303331199 has 4 divisors (see below), whose sum is σ = 20775501736. Its totient is φ = 19831160664.

The previous prime is 20303331193. The next prime is 20303331203. The reversal of 20303331199 is 99113330302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20303331199 - 2⁹ = 20303330687 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 (20303331193) 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, 236085204 + ... + 236085289.

It is an arithmetic number, because the mean of its divisors is an integer number (5193875434).

Almost surely, 2^20303331199 is an apocalyptic number.

20303331199 is a deficient number, since it is larger than the sum of its proper divisors (472170537).

20303331199 is an equidigital number, since it uses as much as digits as its factorization.

20303331199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472170536.

The product of its (nonzero) digits is 13122, while the sum is 34.

The spelling of 20303331199 in words is "twenty billion, three hundred three million, three hundred thirty-one thousand, one hundred ninety-nine".