133121100193 has 2 divisors, whose sum is σ = 133121100194. Its totient is φ = 133121100192.

The previous prime is 133121100179. The next prime is 133121100293. The reversal of 133121100193 is 391001121331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72364766049 + 60756334144 = 269007^2 + 246488^2 .

It is a cyclic number.

It is not a de Polignac number, because 133121100193 - 2³³ = 124531165601 is a prime.

It is not a weakly prime, because it can be changed into another prime (133121100113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66560550096 + 66560550097.

It is an arithmetic number, because the mean of its divisors is an integer number (66560550097).

Almost surely, 2^133121100193 is an apocalyptic number.

It is an amenable number.

133121100193 is a deficient number, since it is larger than the sum of its proper divisors (1).

133121100193 is an equidigital number, since it uses as much as digits as its factorization.

133121100193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The spelling of 133121100193 in words is "one hundred thirty-three billion, one hundred twenty-one million, one hundred thousand, one hundred ninety-three".