302120113 has 2 divisors, whose sum is σ = 302120114. Its totient is φ = 302120112.

The previous prime is 302120101. The next prime is 302120153. The reversal of 302120113 is 311021203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296976289 + 5143824 = 17233^2 + 2268^2 .

It is a cyclic number.

It is not a de Polignac number, because 302120113 - 2⁵ = 302120081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 302120093 and 302120102.

It is not a weakly prime, because it can be changed into another prime (302120153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151060056 + 151060057.

It is an arithmetic number, because the mean of its divisors is an integer number (151060057).

Almost surely, 2^302120113 is an apocalyptic number.

It is an amenable number.

302120113 is a deficient number, since it is larger than the sum of its proper divisors (1).

302120113 is an equidigital number, since it uses as much as digits as its factorization.

302120113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 302120113 is about 17381.6027166657. The cubic root of 302120113 is about 671.0062203147.

Adding to 302120113 its reverse (311021203), we get a palindrome (613141316).

The spelling of 302120113 in words is "three hundred two million, one hundred twenty thousand, one hundred thirteen".