133123122919 has 2 divisors, whose sum is σ = 133123122920. Its totient is φ = 133123122918.

The previous prime is 133123122911. The next prime is 133123122931. The reversal of 133123122919 is 919221321331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133123122919 - 2³ = 133123122911 is a prime.

It is a super-2 number, since 2×133123122919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133123122911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66561561459 + 66561561460.

It is an arithmetic number, because the mean of its divisors is an integer number (66561561460).

Almost surely, 2^133123122919 is an apocalyptic number.

133123122919 is a deficient number, since it is larger than the sum of its proper divisors (1).

133123122919 is an equidigital number, since it uses as much as digits as its factorization.

133123122919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 37.

The spelling of 133123122919 in words is "one hundred thirty-three billion, one hundred twenty-three million, one hundred twenty-two thousand, nine hundred nineteen".