121333213193 has 2 divisors, whose sum is σ = 121333213194. Its totient is φ = 121333213192.

The previous prime is 121333213181. The next prime is 121333213213. The reversal of 121333213193 is 391312333121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80469803584 + 40863409609 = 283672^2 + 202147^2 .

It is a cyclic number.

It is not a de Polignac number, because 121333213193 - 2²⁶ = 121266104329 is a prime.

It is not a weakly prime, because it can be changed into another prime (121333213123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60666606596 + 60666606597.

It is an arithmetic number, because the mean of its divisors is an integer number (60666606597).

Almost surely, 2^121333213193 is an apocalyptic number.

It is an amenable number.

121333213193 is a deficient number, since it is larger than the sum of its proper divisors (1).

121333213193 is an equidigital number, since it uses as much as digits as its factorization.

121333213193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 32.

The spelling of 121333213193 in words is "one hundred twenty-one billion, three hundred thirty-three million, two hundred thirteen thousand, one hundred ninety-three".