20132233321 has 4 divisors (see below), whose sum is σ = 20623263444. Its totient is φ = 19641203200.

The previous prime is 20132233243. The next prime is 20132233361. The reversal of 20132233321 is 12333223102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12333223102 = 2 ⋅6166611551.

It can be written as a sum of positive squares in 2 ways, for example, as 5243352921 + 14888880400 = 72411^2 + 122020^2 .

It is a cyclic number.

It is not a de Polignac number, because 20132233321 - 2⁷ = 20132233193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20132233292 and 20132233301.

It is not an unprimeable number, because it can be changed into a prime (20132233361) 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, 245515000 + ... + 245515081.

It is an arithmetic number, because the mean of its divisors is an integer number (5155815861).

Almost surely, 2^20132233321 is an apocalyptic number.

It is an amenable number.

20132233321 is a deficient number, since it is larger than the sum of its proper divisors (491030123).

20132233321 is an equidigital number, since it uses as much as digits as its factorization.

20132233321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491030122.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20132233321 its reverse (12333223102), we get a palindrome (32465456423).

The spelling of 20132233321 in words is "twenty billion, one hundred thirty-two million, two hundred thirty-three thousand, three hundred twenty-one".