121212302310013 has 2 divisors, whose sum is σ = 121212302310014. Its totient is φ = 121212302310012.

The previous prime is 121212302309993. The next prime is 121212302310023. The reversal of 121212302310013 is 310013203212121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85098909158649 + 36113393151364 = 9224907^2 + 6009442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121212302310013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121212302310023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60606151155006 + 60606151155007.

It is an arithmetic number, because the mean of its divisors is an integer number (60606151155007).

Almost surely, 2^{121212302310013} is an apocalyptic number.

It is an amenable number.

121212302310013 is a deficient number, since it is larger than the sum of its proper divisors (1).

121212302310013 is an equidigital number, since it uses as much as digits as its factorization.

121212302310013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121212302310013 its reverse (310013203212121), we get a palindrome (431225505522134).

The spelling of 121212302310013 in words is "one hundred twenty-one trillion, two hundred twelve billion, three hundred two million, three hundred ten thousand, thirteen".