33020121061 has 2 divisors, whose sum is σ = 33020121062. Its totient is φ = 33020121060.

The previous prime is 33020121023. The next prime is 33020121073. The reversal of 33020121061 is 16012102033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17448824836 + 15571296225 = 132094^2 + 124785^2 .

It is an emirp because it is prime and its reverse (16012102033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33020121061 - 2⁷ = 33020120933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33020121091) 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, 16510060530 + 16510060531.

It is an arithmetic number, because the mean of its divisors is an integer number (16510060531).

Almost surely, 2^33020121061 is an apocalyptic number.

It is an amenable number.

33020121061 is a deficient number, since it is larger than the sum of its proper divisors (1).

33020121061 is an equidigital number, since it uses as much as digits as its factorization.

33020121061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 33020121061 its reverse (16012102033), we get a palindrome (49032223094).

The spelling of 33020121061 in words is "thirty-three billion, twenty million, one hundred twenty-one thousand, sixty-one".