32404323231 has 18 divisors (see below), whose sum is σ = 54448081272. Its totient is φ = 18516755880.

The previous prime is 32404323229. The next prime is 32404323241. The reversal of 32404323231 is 13232340423.

32404323231 is a `hidden beast` number, since 3 + 2 + 404 + 3 + 23 + 231 = 666.

It is not a de Polignac number, because 32404323231 - 2¹ = 32404323229 is a prime.

It is a super-2 number, since 2×32404323231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32404323195 and 32404323204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32404323241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 36739155 + ... + 36740036.

It is an arithmetic number, because the mean of its divisors is an integer number (3024893404).

Almost surely, 2^32404323231 is an apocalyptic number.

32404323231 is a deficient number, since it is larger than the sum of its proper divisors (22043758041).

32404323231 is a wasteful number, since it uses less digits than its factorization.

32404323231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73479211 (or 73479201 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 32404323231 its reverse (13232340423), we get a palindrome (45636663654).

The spelling of 32404323231 in words is "thirty-two billion, four hundred four million, three hundred twenty-three thousand, two hundred thirty-one".