123191342 has 8 divisors (see below), whose sum is σ = 185103576. Its totient is φ = 61490152.

The previous prime is 123191317. The next prime is 123191353. The reversal of 123191342 is 243191321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×123191342² = 30352213487521928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51293 + ... + 53640.

It is an arithmetic number, because the mean of its divisors is an integer number (23137947).

Almost surely, 2^123191342 is an apocalyptic number.

123191342 is a deficient number, since it is larger than the sum of its proper divisors (61912234).

123191342 is a wasteful number, since it uses less digits than its factorization.

123191342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105522.

The product of its digits is 1296, while the sum is 26.

The square root of 123191342 is about 11099.1595177293. The cubic root of 123191342 is about 497.5767305032.

The spelling of 123191342 in words is "one hundred twenty-three million, one hundred ninety-one thousand, three hundred forty-two".