123354240530111 has 4 divisors (see below), whose sum is σ = 123357914335632. Its totient is φ = 123350566724592.

The previous prime is 123354240530033. The next prime is 123354240530119. The reversal of 123354240530111 is 111035042453321.

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 123354240530111 - 2²² = 123354236335807 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 (123354240530119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836852395 + ... + 1836919548.

It is an arithmetic number, because the mean of its divisors is an integer number (30839478583908).

Almost surely, 2^{123354240530111} is an apocalyptic number.

123354240530111 is a deficient number, since it is larger than the sum of its proper divisors (3673805521).

123354240530111 is an equidigital number, since it uses as much as digits as its factorization.

123354240530111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673805520.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 123354240530111 its reverse (111035042453321), we get a palindrome (234389282983432).

The spelling of 123354240530111 in words is "one hundred twenty-three trillion, three hundred fifty-four billion, two hundred forty million, five hundred thirty thousand, one hundred eleven".