123355425244434 has 32 divisors (see below), whose sum is σ = 253716896716800. Its totient is φ = 39960411199632.

The previous prime is 123355425244417. The next prime is 123355425244463. The reversal of 123355425244434 is 434442524553321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1201259722 + ... + 1201362405.

It is an arithmetic number, because the mean of its divisors is an integer number (7928653022400).

Almost surely, 2^{123355425244434} is an apocalyptic number.

123355425244434 is an abundant number, since it is smaller than the sum of its proper divisors (130361471472366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123355425244434 is a wasteful number, since it uses less digits than its factorization.

123355425244434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402622374.

The product of its digits is 27648000, while the sum is 51.

Adding to 123355425244434 its reverse (434442524553321), we get a palindrome (557797949797755).

The spelling of 123355425244434 in words is "one hundred twenty-three trillion, three hundred fifty-five billion, four hundred twenty-five million, two hundred forty-four thousand, four hundred thirty-four".