20334042013 has 2 divisors, whose sum is σ = 20334042014. Its totient is φ = 20334042012.

The previous prime is 20334041951. The next prime is 20334042037. The reversal of 20334042013 is 31024043302.

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., 11810690329 + 8523351684 = 108677^2 + 92322^2 .

It is a cyclic number.

It is not a de Polignac number, because 20334042013 - 2³³ = 11744107421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20334042413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167021006 + 10167021007.

It is an arithmetic number, because the mean of its divisors is an integer number (10167021007).

Almost surely, 2^20334042013 is an apocalyptic number.

It is an amenable number.

20334042013 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334042013 is an equidigital number, since it uses as much as digits as its factorization.

20334042013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20334042013 its reverse (31024043302), we get a palindrome (51358085315).

The spelling of 20334042013 in words is "twenty billion, three hundred thirty-four million, forty-two thousand, thirteen".