32121013040 has 20 divisors (see below), whose sum is σ = 74681355504. Its totient is φ = 12848405184.

The previous prime is 32121013039. The next prime is 32121013097. The reversal of 32121013040 is 4031012123.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200756252 + ... + 200756411.

Almost surely, 2^32121013040 is an apocalyptic number.

It is an amenable number.

32121013040 is an abundant number, since it is smaller than the sum of its proper divisors (42560342464).

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

32121013040 is a wasteful number, since it uses less digits than its factorization.

32121013040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401512676 (or 401512670 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 32121013040 its reverse (4031012123), we get a palindrome (36152025163).

The spelling of 32121013040 in words is "thirty-two billion, one hundred twenty-one million, thirteen thousand, forty".