20012020933 has 2 divisors, whose sum is σ = 20012020934. Its totient is φ = 20012020932.

The previous prime is 20012020909. The next prime is 20012020939. The reversal of 20012020933 is 33902021002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19022478084 + 989542849 = 137922^2 + 31457^2 .

It is a cyclic number.

It is not a de Polignac number, because 20012020933 - 2⁹ = 20012020421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012020939) 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, 10006010466 + 10006010467.

It is an arithmetic number, because the mean of its divisors is an integer number (10006010467).

Almost surely, 2^20012020933 is an apocalyptic number.

It is an amenable number.

20012020933 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012020933 is an equidigital number, since it uses as much as digits as its factorization.

20012020933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20012020933 its reverse (33902021002), we get a palindrome (53914041935).

The spelling of 20012020933 in words is "twenty billion, twelve million, twenty thousand, nine hundred thirty-three".