301230021 has 16 divisors (see below), whose sum is σ = 426821184. Its totient is φ = 188315904.

The previous prime is 301229977. The next prime is 301230029. The reversal of 301230021 is 120032103.

It is a happy number.

It is not a de Polignac number, because 301230021 - 2¹⁰ = 301228997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 301229979 and 301230006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301230029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3466 + ... + 24788.

It is an arithmetic number, because the mean of its divisors is an integer number (26676324).

Almost surely, 2^301230021 is an apocalyptic number.

It is an amenable number.

301230021 is a deficient number, since it is larger than the sum of its proper divisors (125591163).

301230021 is a wasteful number, since it uses less digits than its factorization.

301230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21620.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 301230021 is about 17355.9794019237. The cubic root of 301230021 is about 670.3466098464.

Adding to 301230021 its reverse (120032103), we get a palindrome (421262124).

It can be divided in two parts, 3012 and 30021, that added together give a palindrome (33033).

The spelling of 301230021 in words is "three hundred one million, two hundred thirty thousand, twenty-one".