123045342443203 has 4 divisors (see below), whose sum is σ = 123056673639480. Its totient is φ = 123034011246928.

The previous prime is 123045342443189. The next prime is 123045342443249. The reversal of 123045342443203 is 302344243540321.

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 123045342443203 - 2³³ = 123036752508611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123045342443273) 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, 5665581850 + ... + 5665603567.

It is an arithmetic number, because the mean of its divisors is an integer number (30764168409870).

Almost surely, 2^{123045342443203} is an apocalyptic number.

123045342443203 is a deficient number, since it is larger than the sum of its proper divisors (11331196277).

123045342443203 is a wasteful number, since it uses less digits than its factorization.

123045342443203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11331196276.

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 123045342443203 its reverse (302344243540321), we get a palindrome (425389585983524).

The spelling of 123045342443203 in words is "one hundred twenty-three trillion, forty-five billion, three hundred forty-two million, four hundred forty-three thousand, two hundred three".