30220313 has 4 divisors (see below), whose sum is σ = 30323748. Its totient is φ = 30116880.

The previous prime is 30220277. The next prime is 30220327. The reversal of 30220313 is 31302203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29560969 + 659344 = 5437^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 30220313 - 2¹⁰ = 30219289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30220343) 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, 51278 + ... + 51863.

It is an arithmetic number, because the mean of its divisors is an integer number (7580937).

Almost surely, 2^30220313 is an apocalyptic number.

It is an amenable number.

30220313 is a deficient number, since it is larger than the sum of its proper divisors (103435).

30220313 is a wasteful number, since it uses less digits than its factorization.

30220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103434.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 30220313 is about 5497.3005193458. The cubic root of 30220313 is about 311.4820225509.

Adding to 30220313 its reverse (31302203), we get a palindrome (61522516).

The spelling of 30220313 in words is "thirty million, two hundred twenty thousand, three hundred thirteen".