32130321 has 8 divisors (see below), whose sum is σ = 43080480. Its totient is φ = 21300192.

The previous prime is 32130277. The next prime is 32130337. The reversal of 32130321 is 12303123.

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

It is not a de Polignac number, because 32130321 - 2⁷ = 32130193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32130321.

It is not an unprimeable number, because it can be changed into a prime (32130421) 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, 29380 + ... + 30453.

It is an arithmetic number, because the mean of its divisors is an integer number (5385060).

Almost surely, 2^32130321 is an apocalyptic number.

It is an amenable number.

32130321 is a deficient number, since it is larger than the sum of its proper divisors (10950159).

32130321 is a wasteful number, since it uses less digits than its factorization.

32130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60015.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 32130321 is about 5668.3614034393. The cubic root of 32130321 is about 317.9106093430.

Adding to 32130321 its reverse (12303123), we get a palindrome (44433444).

The spelling of 32130321 in words is "thirty-two million, one hundred thirty thousand, three hundred twenty-one".