20120433321 has 4 divisors (see below), whose sum is σ = 26827244432. Its totient is φ = 13413622212.

The previous prime is 20120433293. The next prime is 20120433329. The reversal of 20120433321 is 12333402102.

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 not a de Polignac number, because 20120433321 - 2¹⁷ = 20120302249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20120433329) 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, 3353405551 + ... + 3353405556.

It is an arithmetic number, because the mean of its divisors is an integer number (6706811108).

Almost surely, 2^20120433321 is an apocalyptic number.

It is an amenable number.

20120433321 is a deficient number, since it is larger than the sum of its proper divisors (6706811111).

20120433321 is an equidigital number, since it uses as much as digits as its factorization.

20120433321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706811110.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20120433321 its reverse (12333402102), we get a palindrome (32453835423).

The spelling of 20120433321 in words is "twenty billion, one hundred twenty million, four hundred thirty-three thousand, three hundred twenty-one".