33103241921 has 2 divisors, whose sum is σ = 33103241922. Its totient is φ = 33103241920.

The previous prime is 33103241869. The next prime is 33103241933. The reversal of 33103241921 is 12914230133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17736912400 + 15366329521 = 133180^2 + 123961^2 .

It is a cyclic number.

It is not a de Polignac number, because 33103241921 - 2³⁴ = 15923372737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (33103241981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16551620960 + 16551620961.

It is an arithmetic number, because the mean of its divisors is an integer number (16551620961).

Almost surely, 2^33103241921 is an apocalyptic number.

It is an amenable number.

33103241921 is a deficient number, since it is larger than the sum of its proper divisors (1).

33103241921 is an equidigital number, since it uses as much as digits as its factorization.

33103241921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 33103241921 in words is "thirty-three billion, one hundred three million, two hundred forty-one thousand, nine hundred twenty-one".