33013320061 has 2 divisors, whose sum is σ = 33013320062. Its totient is φ = 33013320060.

The previous prime is 33013320019. The next prime is 33013320083. The reversal of 33013320061 is 16002331033.

It is an a-pointer prime, because the next prime (33013320083) can be obtained adding 33013320061 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32867514436 + 145805625 = 181294^2 + 12075^2 .

It is a cyclic number.

It is not a de Polignac number, because 33013320061 - 2²⁹ = 32476449149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33013320001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16506660030 + 16506660031.

It is an arithmetic number, because the mean of its divisors is an integer number (16506660031).

Almost surely, 2^33013320061 is an apocalyptic number.

It is an amenable number.

33013320061 is a deficient number, since it is larger than the sum of its proper divisors (1).

33013320061 is an equidigital number, since it uses as much as digits as its factorization.

33013320061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33013320061 its reverse (16002331033), we get a palindrome (49015651094).

The spelling of 33013320061 in words is "thirty-three billion, thirteen million, three hundred twenty thousand, sixty-one".