32020312321 has 4 divisors (see below), whose sum is σ = 32022559444. Its totient is φ = 32018065200.

The previous prime is 32020312273. The next prime is 32020312391. The reversal of 32020312321 is 12321302023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14528927296 + 17491385025 = 120536^2 + 132255^2 .

It is a cyclic number.

It is not a de Polignac number, because 32020312321 - 2¹⁹ = 32019788033 is a prime.

It is a super-2 number, since 2×32020312321² (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 (32020312391) 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, 1102050 + ... + 1130731.

It is an arithmetic number, because the mean of its divisors is an integer number (8005639861).

Almost surely, 2^32020312321 is an apocalyptic number.

It is an amenable number.

32020312321 is a deficient number, since it is larger than the sum of its proper divisors (2247123).

32020312321 is a wasteful number, since it uses less digits than its factorization.

32020312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247122.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 32020312321 its reverse (12321302023), we get a palindrome (44341614344).

The spelling of 32020312321 in words is "thirty-two billion, twenty million, three hundred twelve thousand, three hundred twenty-one".