121773093121 has 2 divisors, whose sum is σ = 121773093122. Its totient is φ = 121773093120.

The previous prime is 121773093041. The next prime is 121773093203. The reversal of 121773093121 is 121390377121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120017902096 + 1755191025 = 346436^2 + 41895^2 .

It is a cyclic number.

It is not a de Polignac number, because 121773093121 - 2²³ = 121764704513 is a prime.

It is not a weakly prime, because it can be changed into another prime (121773043121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60886546560 + 60886546561.

It is an arithmetic number, because the mean of its divisors is an integer number (60886546561).

Almost surely, 2^121773093121 is an apocalyptic number.

It is an amenable number.

121773093121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121773093121 is an equidigital number, since it uses as much as digits as its factorization.

121773093121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 37.

The spelling of 121773093121 in words is "one hundred twenty-one billion, seven hundred seventy-three million, ninety-three thousand, one hundred twenty-one".