32001320121 has 16 divisors (see below), whose sum is σ = 43666332864. Its totient is φ = 20835388224.

The previous prime is 32001320111. The next prime is 32001320261. The reversal of 32001320121 is 12102310023.

It is not a de Polignac number, because 32001320121 - 2¹³ = 32001311929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32001320121.

It is not an unprimeable number, because it can be changed into a prime (32001320111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1718955 + ... + 1737471.

It is an arithmetic number, because the mean of its divisors is an integer number (2729145804).

Almost surely, 2^32001320121 is an apocalyptic number.

It is an amenable number.

32001320121 is a deficient number, since it is larger than the sum of its proper divisors (11665012743).

32001320121 is a wasteful number, since it uses less digits than its factorization.

32001320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31960.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 32001320121 its reverse (12102310023), we get a palindrome (44103630144).

The spelling of 32001320121 in words is "thirty-two billion, one million, three hundred twenty thousand, one hundred twenty-one".