423321232434 has 32 divisors (see below), whose sum is σ = 856709228544. Its totient is φ = 139435203600.

The previous prime is 423321232391. The next prime is 423321232459. The reversal of 423321232434 is 434232123324.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 423321232395 and 423321232404.

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, 453592 + ... + 1025859.

It is an arithmetic number, because the mean of its divisors is an integer number (26772163392).

Almost surely, 2^423321232434 is an apocalyptic number.

423321232434 is an abundant number, since it is smaller than the sum of its proper divisors (433387996110).

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

423321232434 is a wasteful number, since it uses less digits than its factorization.

423321232434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480022.

The product of its digits is 82944, while the sum is 33.

Adding to 423321232434 its reverse (434232123324), we get a palindrome (857553355758).

The spelling of 423321232434 in words is "four hundred twenty-three billion, three hundred twenty-one million, two hundred thirty-two thousand, four hundred thirty-four".