423320411332 has 72 divisors (see below), whose sum is σ = 930709714200. Its totient is φ = 166987215360.

The previous prime is 423320411303. The next prime is 423320411333. The reversal of 423320411332 is 233114023324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4263567616 + 419056843716 = 65296^2 + 647346^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 423320411332.

It is not an unprimeable number, because it can be changed into a prime (423320411333) 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, 651232 + ... + 1127272.

Almost surely, 2^423320411332 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 423320411332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465354857100).

423320411332 is an abundant number, since it is smaller than the sum of its proper divisors (507389302868).

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

423320411332 is a wasteful number, since it uses less digits than its factorization.

423320411332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476421 (or 476412 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 423320411332 its reverse (233114023324), we get a palindrome (656434434656).

The spelling of 423320411332 in words is "four hundred twenty-three billion, three hundred twenty million, four hundred eleven thousand, three hundred thirty-two".