32131330040 has 32 divisors (see below), whose sum is σ = 73833698880. Its totient is φ = 12579073152.

The previous prime is 32131330031. The next prime is 32131330043. The reversal of 32131330040 is 4003313123.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 32131329994 and 32131330021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32131330043) 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 7 ways as a sum of consecutive naturals, for example, 8543687 + ... + 8547446.

It is an arithmetic number, because the mean of its divisors is an integer number (2307303090).

Almost surely, 2^32131330040 is an apocalyptic number.

It is an amenable number.

32131330040 is an abundant number, since it is smaller than the sum of its proper divisors (41702368840).

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

32131330040 is a wasteful number, since it uses less digits than its factorization.

32131330040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17091191 (or 17091187 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 32131330040 its reverse (4003313123), we get a palindrome (36134643163).

The spelling of 32131330040 in words is "thirty-two billion, one hundred thirty-one million, three hundred thirty thousand, forty".