302120113021 has 2 divisors, whose sum is σ = 302120113022. Its totient is φ = 302120113020.

The previous prime is 302120113019. The next prime is 302120113033. The reversal of 302120113021 is 120311021203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245351808900 + 56768304121 = 495330^2 + 238261^2 .

It is a cyclic number.

It is not a de Polignac number, because 302120113021 - 2¹ = 302120113019 is a prime.

Together with 302120113019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 302120112986 and 302120113004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302120123021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151060056510 + 151060056511.

It is an arithmetic number, because the mean of its divisors is an integer number (151060056511).

Almost surely, 2^302120113021 is an apocalyptic number.

It is an amenable number.

302120113021 is a deficient number, since it is larger than the sum of its proper divisors (1).

302120113021 is an equidigital number, since it uses as much as digits as its factorization.

302120113021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 302120113021 its reverse (120311021203), we get a palindrome (422431134224).

The spelling of 302120113021 in words is "three hundred two billion, one hundred twenty million, one hundred thirteen thousand, twenty-one".