20045203333 has 2 divisors, whose sum is σ = 20045203334. Its totient is φ = 20045203332.

The previous prime is 20045203307. The next prime is 20045203337. The reversal of 20045203333 is 33330254002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19743903169 + 301300164 = 140513^2 + 17358^2 .

It is a cyclic number.

It is not a de Polignac number, because 20045203333 - 2²⁹ = 19508332421 is a prime.

It is a super-2 number, since 2×20045203333² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20045203298 and 20045203307.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20045203337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10022601666 + 10022601667.

It is an arithmetic number, because the mean of its divisors is an integer number (10022601667).

Almost surely, 2^20045203333 is an apocalyptic number.

It is an amenable number.

20045203333 is a deficient number, since it is larger than the sum of its proper divisors (1).

20045203333 is an equidigital number, since it uses as much as digits as its factorization.

20045203333 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 25.

Adding to 20045203333 its reverse (33330254002), we get a palindrome (53375457335).

The spelling of 20045203333 in words is "twenty billion, forty-five million, two hundred three thousand, three hundred thirty-three".