302120142121013 has 2 divisors, whose sum is σ = 302120142121014. Its totient is φ = 302120142121012.

The previous prime is 302120142121009. The next prime is 302120142121151. The reversal of 302120142121013 is 310121241021203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298078084143844 + 4042057977169 = 17264938^2 + 2010487^2 .

It is an emirp because it is prime and its reverse (310121241021203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 302120142121013 - 2² = 302120142121009 is a prime.

It is a super-2 number, since 2×302120142121013² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 302120142121013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (302120142021013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151060071060506 + 151060071060507.

It is an arithmetic number, because the mean of its divisors is an integer number (151060071060507).

Almost surely, 2^{302120142121013} is an apocalyptic number.

It is an amenable number.

302120142121013 is a deficient number, since it is larger than the sum of its proper divisors (1).

302120142121013 is an equidigital number, since it uses as much as digits as its factorization.

302120142121013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 302120142121013 its reverse (310121241021203), we get a palindrome (612241383142216).

The spelling of 302120142121013 in words is "three hundred two trillion, one hundred twenty billion, one hundred forty-two million, one hundred twenty-one thousand, thirteen".