32121320209 has 4 divisors (see below), whose sum is σ = 35041440240. Its totient is φ = 29201200180.

The previous prime is 32121320177. The next prime is 32121320213. The reversal of 32121320209 is 90202312123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 32121320209 - 2⁵ = 32121320177 is a prime.

It is a super-2 number, since 2×32121320209² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32125320209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1460059999 + ... + 1460060020.

It is an arithmetic number, because the mean of its divisors is an integer number (8760360060).

Almost surely, 2^32121320209 is an apocalyptic number.

It is an amenable number.

32121320209 is a deficient number, since it is larger than the sum of its proper divisors (2920120031).

32121320209 is a wasteful number, since it uses less digits than its factorization.

32121320209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920120030.

The product of its (nonzero) digits is 1296, while the sum is 25.

The spelling of 32121320209 in words is "thirty-two billion, one hundred twenty-one million, three hundred twenty thousand, two hundred nine".