301424021 has 4 divisors (see below), whose sum is σ = 301471500. Its totient is φ = 301376544.

The previous prime is 301424017. The next prime is 301424033. The reversal of 301424021 is 120424103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120424103 = 421 ⋅286043.

It can be written as a sum of positive squares in 2 ways, for example, as 166539025 + 134884996 = 12905^2 + 11614^2 .

It is a cyclic number.

It is not a de Polignac number, because 301424021 - 2² = 301424017 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 (301024021) 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, 12416 + ... + 27513.

It is an arithmetic number, because the mean of its divisors is an integer number (75367875).

Almost surely, 2^301424021 is an apocalyptic number.

It is an amenable number.

301424021 is a deficient number, since it is larger than the sum of its proper divisors (47479).

301424021 is an equidigital number, since it uses as much as digits as its factorization.

301424021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47478.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 301424021 is about 17361.5673543606. The cubic root of 301424021 is about 670.4904858717.

Adding to 301424021 its reverse (120424103), we get a palindrome (421848124).

The spelling of 301424021 in words is "three hundred one million, four hundred twenty-four thousand, twenty-one".