302220113 has 4 divisors (see below), whose sum is σ = 325467828. Its totient is φ = 278972400.

The previous prime is 302220097. The next prime is 302220119. The reversal of 302220113 is 311022203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311022203 = 11867 ⋅26209.

It can be written as a sum of positive squares in 2 ways, for example, as 176039824 + 126180289 = 13268^2 + 11233^2 .

It is a cyclic number.

It is not a de Polignac number, because 302220113 - 2⁴ = 302220097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (302220119) 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, 11623838 + ... + 11623863.

It is an arithmetic number, because the mean of its divisors is an integer number (81366957).

Almost surely, 2^302220113 is an apocalyptic number.

It is an amenable number.

302220113 is a deficient number, since it is larger than the sum of its proper divisors (23247715).

302220113 is a wasteful number, since it uses less digits than its factorization.

302220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23247714.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 302220113 is about 17384.4790833663. The cubic root of 302220113 is about 671.0802451999.

Adding to 302220113 its reverse (311022203), we get a palindrome (613242316).

The spelling of 302220113 in words is "three hundred two million, two hundred twenty thousand, one hundred thirteen".