300199328021 has 4 divisors (see below), whose sum is σ = 309883177344. Its totient is φ = 290515478700.

The previous prime is 300199327969. The next prime is 300199328053. The reversal of 300199328021 is 120823991003.

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: 120823991003 = 4441 ⋅27206483.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-300199328021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300199328081) 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, 4841924615 + ... + 4841924676.

It is an arithmetic number, because the mean of its divisors is an integer number (77470794336).

Almost surely, 2^300199328021 is an apocalyptic number.

300199328021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

300199328021 is a deficient number, since it is larger than the sum of its proper divisors (9683849323).

300199328021 is an equidigital number, since it uses as much as digits as its factorization.

300199328021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9683849322.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 300199328021 in words is "three hundred billion, one hundred ninety-nine million, three hundred twenty-eight thousand, twenty-one".