33120243142009 has 2 divisors, whose sum is σ = 33120243142010. Its totient is φ = 33120243142008.

The previous prime is 33120243141991. The next prime is 33120243142031. The reversal of 33120243142009 is 90024134202133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33117953232400 + 2289909609 = 5754820^2 + 47853^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33120243142009 is a prime.

It is not a weakly prime, because it can be changed into another prime (33120243145009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16560121571004 + 16560121571005.

It is an arithmetic number, because the mean of its divisors is an integer number (16560121571005).

Almost surely, 2^{33120243142009} is an apocalyptic number.

It is an amenable number.

33120243142009 is a deficient number, since it is larger than the sum of its proper divisors (1).

33120243142009 is an equidigital number, since it uses as much as digits as its factorization.

33120243142009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 33120243142009 in words is "thirty-three trillion, one hundred twenty billion, two hundred forty-three million, one hundred forty-two thousand, nine".