32121101 has 8 divisors (see below), whose sum is σ = 32639640. Its totient is φ = 31606848.

The previous prime is 32121071. The next prime is 32121107. The reversal of 32121101 is 10112123.

It can be written as a sum of positive squares in 4 ways, for example, as 6100900 + 26020201 = 2470^2 + 5101^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32121101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32121107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16175 + ... + 18051.

It is an arithmetic number, because the mean of its divisors is an integer number (4079955).

Almost surely, 2^32121101 is an apocalyptic number.

It is an amenable number.

32121101 is a deficient number, since it is larger than the sum of its proper divisors (518539).

32121101 is a wasteful number, since it uses less digits than its factorization.

32121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 32121101 is about 5667.5480589052. The cubic root of 32121101 is about 317.8801976100.

Adding to 32121101 its reverse (10112123), we get a palindrome (42233224).

The spelling of 32121101 in words is "thirty-two million, one hundred twenty-one thousand, one hundred one".