123045112202143 has 4 divisors (see below), whose sum is σ = 123089104021960. Its totient is φ = 123001120382328.

The previous prime is 123045112202119. The next prime is 123045112202209. The reversal of 123045112202143 is 341202211540321.

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 123045112202143 - 2¹³ = 123045112193951 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 (123045112208143) 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, 21995905713 + ... + 21995911306.

It is an arithmetic number, because the mean of its divisors is an integer number (30772276005490).

Almost surely, 2^{123045112202143} is an apocalyptic number.

123045112202143 is a deficient number, since it is larger than the sum of its proper divisors (43991819817).

123045112202143 is an equidigital number, since it uses as much as digits as its factorization.

123045112202143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43991819816.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 123045112202143 its reverse (341202211540321), we get a palindrome (464247323742464).

The spelling of 123045112202143 in words is "one hundred twenty-three trillion, forty-five billion, one hundred twelve million, two hundred two thousand, one hundred forty-three".