423404131332 has 96 divisors (see below), whose sum is σ = 1216395443200. Its totient is φ = 111624262272.

The previous prime is 423404131321. The next prime is 423404131343. The reversal of 423404131332 is 233131404324.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (423404131321) and next prime (423404131343).

It is a self number, because there is not a number n which added to its sum of digits gives 423404131332.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2830719 + ... + 2976537.

Almost surely, 2^423404131332 is an apocalyptic number.

423404131332 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423404131332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608197721600).

423404131332 is an abundant number, since it is smaller than the sum of its proper divisors (792991311868).

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

423404131332 is a wasteful number, since it uses less digits than its factorization.

423404131332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148505 (or 148503 counting only the distinct ones).

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

Adding to 423404131332 its reverse (233131404324), we get a palindrome (656535535656).

The spelling of 423404131332 in words is "four hundred twenty-three billion, four hundred four million, one hundred thirty-one thousand, three hundred thirty-two".