121773030193 has 2 divisors, whose sum is σ = 121773030194. Its totient is φ = 121773030192.

The previous prime is 121773030161. The next prime is 121773030241. The reversal of 121773030193 is 391030377121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104033986849 + 17739043344 = 322543^2 + 133188^2 .

It is a cyclic number.

It is not a de Polignac number, because 121773030193 - 2⁵ = 121773030161 is a prime.

It is not a weakly prime, because it can be changed into another prime (121773030143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60886515096 + 60886515097.

It is an arithmetic number, because the mean of its divisors is an integer number (60886515097).

Almost surely, 2^121773030193 is an apocalyptic number.

It is an amenable number.

121773030193 is a deficient number, since it is larger than the sum of its proper divisors (1).

121773030193 is an equidigital number, since it uses as much as digits as its factorization.

121773030193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 37.

The spelling of 121773030193 in words is "one hundred twenty-one billion, seven hundred seventy-three million, thirty thousand, one hundred ninety-three".