32130221321 has 16 divisors (see below), whose sum is σ = 35210040768. Its totient is φ = 29077171200.

The previous prime is 32130221317. The next prime is 32130221327. The reversal of 32130221321 is 12312203123.

It is not a de Polignac number, because 32130221321 - 2² = 32130221317 is a prime.

It is a super-2 number, since 2×32130221321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32130221293 and 32130221302.

It is not an unprimeable number, because it can be changed into a prime (32130221327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2389106 + ... + 2402516.

It is an arithmetic number, because the mean of its divisors is an integer number (2200627548).

Almost surely, 2^32130221321 is an apocalyptic number.

It is an amenable number.

32130221321 is a deficient number, since it is larger than the sum of its proper divisors (3079819447).

32130221321 is a wasteful number, since it uses less digits than its factorization.

32130221321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14392.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 32130221321 its reverse (12312203123), we get a palindrome (44442424444).

The spelling of 32130221321 in words is "thirty-two billion, one hundred thirty million, two hundred twenty-one thousand, three hundred twenty-one".