423431123304 has 192 divisors, whose sum is σ = 1250912332800. Its totient is φ = 119067290496.

The previous prime is 423431123303. The next prime is 423431123321. The reversal of 423431123304 is 403321134324.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (423431123303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135757057 + ... + 135760175.

It is an arithmetic number, because the mean of its divisors is an integer number (6515168400).

Almost surely, 2^423431123304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423431123304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (625456166400).

423431123304 is an abundant number, since it is smaller than the sum of its proper divisors (827481209496).

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

423431123304 is a wasteful number, since it uses less digits than its factorization.

423431123304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4932 (or 4921 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 423431123304 its reverse (403321134324), we get a palindrome (826752257628).

The spelling of 423431123304 in words is "four hundred twenty-three billion, four hundred thirty-one million, one hundred twenty-three thousand, three hundred four".