195103123 has 4 divisors (see below), whose sum is σ = 198784368. Its totient is φ = 191421880.

The previous prime is 195103099. The next prime is 195103127. The reversal of 195103123 is 321301591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321301591 = 13 ⋅24715507.

It is a cyclic number.

It is not a de Polignac number, because 195103123 - 2⁵ = 195103091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195103127) 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, 1840543 + ... + 1840648.

It is an arithmetic number, because the mean of its divisors is an integer number (49696092).

Almost surely, 2^195103123 is an apocalyptic number.

195103123 is a deficient number, since it is larger than the sum of its proper divisors (3681245).

195103123 is an equidigital number, since it uses as much as digits as its factorization.

195103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681244.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 195103123 is about 13967.9319514379. The cubic root of 195103123 is about 579.9912037905.

The spelling of 195103123 in words is "one hundred ninety-five million, one hundred three thousand, one hundred twenty-three".