123313443401191 has 4 divisors (see below), whose sum is σ = 123348565433584. Its totient is φ = 123278321368800.

The previous prime is 123313443401189. The next prime is 123313443401221. The reversal of 123313443401191 is 191104344313321.

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 123313443401191 - 2¹ = 123313443401189 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 (123313443401891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17561010930 + ... + 17561017951.

It is an arithmetic number, because the mean of its divisors is an integer number (30837141358396).

Almost surely, 2^{123313443401191} is an apocalyptic number.

123313443401191 is a deficient number, since it is larger than the sum of its proper divisors (35122032393).

123313443401191 is an equidigital number, since it uses as much as digits as its factorization.

123313443401191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35122032392.

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 123313443401191 in words is "one hundred twenty-three trillion, three hundred thirteen billion, four hundred forty-three million, four hundred one thousand, one hundred ninety-one".