123354240524434 has 4 divisors (see below), whose sum is σ = 185031360786654. Its totient is φ = 61677120262216.

The previous prime is 123354240524413. The next prime is 123354240524479. The reversal of 123354240524434 is 434425042453321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 114940162630225 + 8414077894209 = 10721015^2 + 2900703^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30838560131107 + ... + 30838560131110.

Almost surely, 2^{123354240524434} is an apocalyptic number.

123354240524434 is a deficient number, since it is larger than the sum of its proper divisors (61677120262220).

123354240524434 is an equidigital number, since it uses as much as digits as its factorization.

123354240524434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61677120262219.

The product of its (nonzero) digits is 5529600, while the sum is 46.

Adding to 123354240524434 its reverse (434425042453321), we get a palindrome (557779282977755).

The spelling of 123354240524434 in words is "one hundred twenty-three trillion, three hundred fifty-four billion, two hundred forty million, five hundred twenty-four thousand, four hundred thirty-four".