11471720033 has 2 divisors, whose sum is σ = 11471720034. Its totient is φ = 11471720032.

The previous prime is 11471720023. The next prime is 11471720077. The reversal of 11471720033 is 33002717411.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11365052449 + 106667584 = 106607^2 + 10328^2 .

It is a cyclic number.

It is not a de Polignac number, because 11471720033 - 2⁴ = 11471720017 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11471719978 and 11471720005.

It is not a weakly prime, because it can be changed into another prime (11471720023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5735860016 + 5735860017.

It is an arithmetic number, because the mean of its divisors is an integer number (5735860017).

Almost surely, 2^11471720033 is an apocalyptic number.

It is an amenable number.

11471720033 is a deficient number, since it is larger than the sum of its proper divisors (1).

11471720033 is an equidigital number, since it uses as much as digits as its factorization.

11471720033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The spelling of 11471720033 in words is "eleven billion, four hundred seventy-one million, seven hundred twenty thousand, thirty-three".