20342213033 has 2 divisors, whose sum is σ = 20342213034. Its totient is φ = 20342213032.

The previous prime is 20342213027. The next prime is 20342213041. The reversal of 20342213033 is 33031224302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16551594409 + 3790618624 = 128653^2 + 61568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20342213033 is a prime.

It is not a weakly prime, because it can be changed into another prime (20342213063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10171106516 + 10171106517.

It is an arithmetic number, because the mean of its divisors is an integer number (10171106517).

Almost surely, 2^20342213033 is an apocalyptic number.

It is an amenable number.

20342213033 is a deficient number, since it is larger than the sum of its proper divisors (1).

20342213033 is an equidigital number, since it uses as much as digits as its factorization.

20342213033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20342213033 its reverse (33031224302), we get a palindrome (53373437335).

The spelling of 20342213033 in words is "twenty billion, three hundred forty-two million, two hundred thirteen thousand, thirty-three".