123203021233434 has 16 divisors (see below), whose sum is σ = 246558238930080. Its totient is φ = 41042307667280.

The previous prime is 123203021233433. The next prime is 123203021233489. The reversal of 123203021233434 is 434332120302321.

It is a junction number, because it is equal to n+sod(n) for n = 123203021233395 and 123203021233404.

It is not an unprimeable number, because it can be changed into a prime (123203021233433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6341508777 + ... + 6341528204.

It is an arithmetic number, because the mean of its divisors is an integer number (15409889933130).

Almost surely, 2^{123203021233434} is an apocalyptic number.

123203021233434 is an abundant number, since it is smaller than the sum of its proper divisors (123355217696646).

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

123203021233434 is a wasteful number, since it uses less digits than its factorization.

123203021233434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12683038605.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 123203021233434 its reverse (434332120302321), we get a palindrome (557535141535755).

The spelling of 123203021233434 in words is "one hundred twenty-three trillion, two hundred three billion, twenty-one million, two hundred thirty-three thousand, four hundred thirty-four".