20045213333 has 2 divisors, whose sum is σ = 20045213334. Its totient is φ = 20045213332.

The previous prime is 20045213329. The next prime is 20045213381. The reversal of 20045213333 is 33331254002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18101549764 + 1943663569 = 134542^2 + 44087^2 .

It is a cyclic number.

It is not a de Polignac number, because 20045213333 - 2² = 20045213329 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20045213393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022606666 + 10022606667.

It is an arithmetic number, because the mean of its divisors is an integer number (10022606667).

Almost surely, 2^20045213333 is an apocalyptic number.

It is an amenable number.

20045213333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20045213333 is an equidigital number, since it uses as much as digits as its factorization.

20045213333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 20045213333 its reverse (33331254002), we get a palindrome (53376467335).

The spelling of 20045213333 in words is "twenty billion, forty-five million, two hundred thirteen thousand, three hundred thirty-three".