121302210102137 has 2 divisors, whose sum is σ = 121302210102138. Its totient is φ = 121302210102136.

The previous prime is 121302210102061. The next prime is 121302210102163. The reversal of 121302210102137 is 731201012203121.

It is an a-pointer prime, because the next prime (121302210102163) can be obtained adding 121302210102137 to its sum of digits (26).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99450736305001 + 21851473797136 = 9972499^2 + 4674556^2 .

It is a cyclic number.

It is not a de Polignac number, because 121302210102137 - 2³⁴ = 121285030232953 is a prime.

It is not a weakly prime, because it can be changed into another prime (121302210102637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651105051068 + 60651105051069.

It is an arithmetic number, because the mean of its divisors is an integer number (60651105051069).

Almost surely, 2^{121302210102137} is an apocalyptic number.

It is an amenable number.

121302210102137 is a deficient number, since it is larger than the sum of its proper divisors (1).

121302210102137 is an equidigital number, since it uses as much as digits as its factorization.

121302210102137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 121302210102137 its reverse (731201012203121), we get a palindrome (852503222305258).

The spelling of 121302210102137 in words is "one hundred twenty-one trillion, three hundred two billion, two hundred ten million, one hundred two thousand, one hundred thirty-seven".