32320120021 has 8 divisors (see below), whose sum is σ = 36944852864. Its totient is φ = 27697280400.

The previous prime is 32320119989. The next prime is 32320120033. The reversal of 32320120021 is 12002102323.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32320120021 - 2⁵ = 32320119989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32320119977 and 32320120004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32320120081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436530 + ... + 505171.

It is an arithmetic number, because the mean of its divisors is an integer number (4618106608).

Almost surely, 2^32320120021 is an apocalyptic number.

It is an amenable number.

32320120021 is a deficient number, since it is larger than the sum of its proper divisors (4624732843).

32320120021 is an equidigital number, since it uses as much as digits as its factorization.

32320120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946611.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 32320120021 its reverse (12002102323), we get a palindrome (44322222344).

The spelling of 32320120021 in words is "thirty-two billion, three hundred twenty million, one hundred twenty thousand, twenty-one".