121298934173 has 2 divisors, whose sum is σ = 121298934174. Its totient is φ = 121298934172.

The previous prime is 121298934161. The next prime is 121298934187. The reversal of 121298934173 is 371439892121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119258334244 + 2040599929 = 345338^2 + 45173^2 .

It is a cyclic number.

It is not a de Polignac number, because 121298934173 - 2⁶ = 121298934109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121298904173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60649467086 + 60649467087.

It is an arithmetic number, because the mean of its divisors is an integer number (60649467087).

Almost surely, 2^121298934173 is an apocalyptic number.

It is an amenable number.

121298934173 is a deficient number, since it is larger than the sum of its proper divisors (1).

121298934173 is an equidigital number, since it uses as much as digits as its factorization.

121298934173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 50.

The spelling of 121298934173 in words is "one hundred twenty-one billion, two hundred ninety-eight million, nine hundred thirty-four thousand, one hundred seventy-three".