101210638169 has 2 divisors, whose sum is σ = 101210638170. Its totient is φ = 101210638168.

The previous prime is 101210638163. The next prime is 101210638171. The reversal of 101210638169 is 961836012101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65082132544 + 36128505625 = 255112^2 + 190075^2 .

It is a cyclic number.

It is not a de Polignac number, because 101210638169 - 2²⁴ = 101193860953 is a prime.

It is a super-2 number, since 2×101210638169² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 101210638171, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (101210638163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605319084 + 50605319085.

It is an arithmetic number, because the mean of its divisors is an integer number (50605319085).

Almost surely, 2^101210638169 is an apocalyptic number.

It is an amenable number.

101210638169 is a deficient number, since it is larger than the sum of its proper divisors (1).

101210638169 is an equidigital number, since it uses as much as digits as its factorization.

101210638169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 101210638169 in words is "one hundred one billion, two hundred ten million, six hundred thirty-eight thousand, one hundred sixty-nine".