300012021 has 12 divisors (see below), whose sum is σ = 445063372. Its totient is φ = 194602176.

The previous prime is 300012001. The next prime is 300012029. The reversal of 300012021 is 120210003.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 278723025 + 21288996 = 16695^2 + 4614^2 .

It is not a de Polignac number, because 300012021 - 2¹¹ = 300009973 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 300011994 and 300012012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (300012029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450136 + ... + 450801.

Almost surely, 2^300012021 is an apocalyptic number.

It is an amenable number.

300012021 is a deficient number, since it is larger than the sum of its proper divisors (145051351).

300012021 is a wasteful number, since it uses less digits than its factorization.

300012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900980 (or 900977 counting only the distinct ones).

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

The square root of 300012021 is about 17320.8550885919. The cubic root of 300012021 is about 669.4418913555.

Adding to 300012021 its reverse (120210003), we get a palindrome (420222024).

The spelling of 300012021 in words is "three hundred million, twelve thousand, twenty-one".