305301213 has 24 divisors (see below), whose sum is σ = 514280000. Its totient is φ = 174456072.

The previous prime is 305301209. The next prime is 305301251. The reversal of 305301213 is 312103503.

It is not a de Polignac number, because 305301213 - 2² = 305301209 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 (305301203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46363 + ... + 52536.

Almost surely, 2^305301213 is an apocalyptic number.

It is an amenable number.

305301213 is a deficient number, since it is larger than the sum of its proper divisors (208978787).

305301213 is an equidigital number, since it uses as much as digits as its factorization.

305301213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98926 (or 98909 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 305301213 is about 17472.8707715704. The cubic root of 305301213 is about 673.3530680478.

Adding to 305301213 its reverse (312103503), we get a palindrome (617404716).

The spelling of 305301213 in words is "three hundred five million, three hundred one thousand, two hundred thirteen".