20132333209 has 2 divisors, whose sum is σ = 20132333210. Its totient is φ = 20132333208.

The previous prime is 20132333203. The next prime is 20132333213. The reversal of 20132333209 is 90233323102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18692358400 + 1439974809 = 136720^2 + 37947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20132333209 is a prime.

It is not a weakly prime, because it can be changed into another prime (20132333203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066166604 + 10066166605.

It is an arithmetic number, because the mean of its divisors is an integer number (10066166605).

Almost surely, 2^20132333209 is an apocalyptic number.

It is an amenable number.

20132333209 is a deficient number, since it is larger than the sum of its proper divisors (1).

20132333209 is an equidigital number, since it uses as much as digits as its factorization.

20132333209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 28.

The spelling of 20132333209 in words is "twenty billion, one hundred thirty-two million, three hundred thirty-three thousand, two hundred nine".