423323103340 has 72 divisors (see below), whose sum is σ = 964790459136. Its totient is φ = 155481446400.

The previous prime is 423323103317. The next prime is 423323103341. The reversal of 423323103340 is 43301323324.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 423323103299 and 423323103308.

It is not an unprimeable number, because it can be changed into a prime (423323103341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201205 + ... + 941875.

It is an arithmetic number, because the mean of its divisors is an integer number (13399867488).

Almost surely, 2^423323103340 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 423323103340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (482395229568).

423323103340 is an abundant number, since it is smaller than the sum of its proper divisors (541467355796).

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

423323103340 is a wasteful number, since it uses less digits than its factorization.

423323103340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740779 (or 740736 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 423323103340 its reverse (43301323324), we get a palindrome (466624426664).

The spelling of 423323103340 in words is "four hundred twenty-three billion, three hundred twenty-three million, one hundred three thousand, three hundred forty".