123133133010191 has 4 divisors (see below), whose sum is σ = 123144735125112. Its totient is φ = 123121530895272.

The previous prime is 123133133010187. The next prime is 123133133010203. The reversal of 123133133010191 is 191010331331321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123133133010191 - 2² = 123133133010187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133133016191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5801041541 + ... + 5801062766.

It is an arithmetic number, because the mean of its divisors is an integer number (30786183781278).

Almost surely, 2^{123133133010191} is an apocalyptic number.

123133133010191 is a deficient number, since it is larger than the sum of its proper divisors (11602114921).

123133133010191 is a wasteful number, since it uses less digits than its factorization.

123133133010191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11602114920.

The product of its (nonzero) digits is 4374, while the sum is 32.

The spelling of 123133133010191 in words is "one hundred twenty-three trillion, one hundred thirty-three billion, one hundred thirty-three million, ten thousand, one hundred ninety-one".