123331543241405 has 16 divisors (see below), whose sum is σ = 156022443730944. Its totient is φ = 93450942848640.

The previous prime is 123331543241377. The next prime is 123331543241411. The reversal of 123331543241405 is 504142345133321.

It is not a de Polignac number, because 123331543241405 - 2²⁴ = 123331526464189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8464752032 + ... + 8464766601.

It is an arithmetic number, because the mean of its divisors is an integer number (9751402733184).

Almost surely, 2^{123331543241405} is an apocalyptic number.

It is an amenable number.

123331543241405 is a deficient number, since it is larger than the sum of its proper divisors (32690900489539).

123331543241405 is a wasteful number, since it uses less digits than its factorization.

123331543241405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16929518716.

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 123331543241405 its reverse (504142345133321), we get a palindrome (627473888374726).

The spelling of 123331543241405 in words is "one hundred twenty-three trillion, three hundred thirty-one billion, five hundred forty-three million, two hundred forty-one thousand, four hundred five".