133123122989 has 2 divisors, whose sum is σ = 133123122990. Its totient is φ = 133123122988.

The previous prime is 133123122967. The next prime is 133123123013. The reversal of 133123122989 is 989221321331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72377140900 + 60745982089 = 269030^2 + 246467^2 .

It is a cyclic number.

It is not a de Polignac number, because 133123122989 - 2²⁴ = 133106345773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133123122919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66561561494 + 66561561495.

It is an arithmetic number, because the mean of its divisors is an integer number (66561561495).

Almost surely, 2^133123122989 is an apocalyptic number.

It is an amenable number.

133123122989 is a deficient number, since it is larger than the sum of its proper divisors (1).

133123122989 is an equidigital number, since it uses as much as digits as its factorization.

133123122989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The spelling of 133123122989 in words is "one hundred thirty-three billion, one hundred twenty-three million, one hundred twenty-two thousand, nine hundred eighty-nine".