300102021 has 12 divisors (see below), whose sum is σ = 438704448. Its totient is φ = 197657064.

The previous prime is 300101983. The next prime is 300102029. The reversal of 300102021 is 120201003.

It is a happy number.

It is not a de Polignac number, because 300102021 - 2⁶ = 300101957 is a prime.

It is a super-2 number, since 2×300102021² = 180122446016568882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 300101994 and 300102012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300102029) 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 11 ways as a sum of consecutive naturals, for example, 200125 + ... + 201618.

It is an arithmetic number, because the mean of its divisors is an integer number (36558704).

Almost surely, 2^300102021 is an apocalyptic number.

It is an amenable number.

300102021 is a deficient number, since it is larger than the sum of its proper divisors (138602427).

300102021 is a wasteful number, since it uses less digits than its factorization.

300102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401832 (or 401829 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 300102021 is about 17323.4529179376. The cubic root of 300102021 is about 669.5088261695.

Adding to 300102021 its reverse (120201003), we get a palindrome (420303024).

The spelling of 300102021 in words is "three hundred million, one hundred two thousand, twenty-one".