20430211033 has 2 divisors, whose sum is σ = 20430211034. Its totient is φ = 20430211032.

The previous prime is 20430211001. The next prime is 20430211063. The reversal of 20430211033 is 33011203402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19202199184 + 1228011849 = 138572^2 + 35043^2 .

It is a cyclic number.

It is not a de Polignac number, because 20430211033 - 2⁵ = 20430211001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20430211033.

It is not a weakly prime, because it can be changed into another prime (20430211063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10215105516 + 10215105517.

It is an arithmetic number, because the mean of its divisors is an integer number (10215105517).

Almost surely, 2^20430211033 is an apocalyptic number.

It is an amenable number.

20430211033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20430211033 is an equidigital number, since it uses as much as digits as its factorization.

20430211033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20430211033 its reverse (33011203402), we get a palindrome (53441414435).

The spelling of 20430211033 in words is "twenty billion, four hundred thirty million, two hundred eleven thousand, thirty-three".