123000422401543 has 4 divisors (see below), whose sum is σ = 128348266853808. Its totient is φ = 117652577949280.

The previous prime is 123000422401531. The next prime is 123000422401547. The reversal of 123000422401543 is 345104224000321.

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 123000422401543 - 2⁵ = 123000422401511 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 (123000422401547) 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, 2673922226098 + ... + 2673922226143.

It is an arithmetic number, because the mean of its divisors is an integer number (32087066713452).

Almost surely, 2^{123000422401543} is an apocalyptic number.

123000422401543 is a deficient number, since it is larger than the sum of its proper divisors (5347844452265).

123000422401543 is an equidigital number, since it uses as much as digits as its factorization.

123000422401543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5347844452264.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 123000422401543 its reverse (345104224000321), we get a palindrome (468104646401864).

The spelling of 123000422401543 in words is "one hundred twenty-three trillion, four hundred twenty-two million, four hundred one thousand, five hundred forty-three".