123421304235 has 16 divisors (see below), whose sum is σ = 197554452480. Its totient is φ = 65797907040.

The previous prime is 123421304191. The next prime is 123421304243. The reversal of 123421304235 is 532403124321.

It is not a de Polignac number, because 123421304235 - 2²⁸ = 123152868779 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1636171 + ... + 1709940.

It is an arithmetic number, because the mean of its divisors is an integer number (12347153280).

Almost surely, 2^123421304235 is an apocalyptic number.

123421304235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123421304235 is a deficient number, since it is larger than the sum of its proper divisors (74133148245).

123421304235 is a wasteful number, since it uses less digits than its factorization.

123421304235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3348578.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 123421304235 its reverse (532403124321), we get a palindrome (655824428556).

The spelling of 123421304235 in words is "one hundred twenty-three billion, four hundred twenty-one million, three hundred four thousand, two hundred thirty-five".