11289521233 has 2 divisors, whose sum is σ = 11289521234. Its totient is φ = 11289521232.

The previous prime is 11289521219. The next prime is 11289521281. The reversal of 11289521233 is 33212598211.

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., 11280139264 + 9381969 = 106208^2 + 3063^2 .

It is a cyclic number.

It is not a de Polignac number, because 11289521233 - 2²⁵ = 11255966801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11289521192 and 11289521201.

It is not a weakly prime, because it can be changed into another prime (11289501233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5644760616 + 5644760617.

It is an arithmetic number, because the mean of its divisors is an integer number (5644760617).

Almost surely, 2^11289521233 is an apocalyptic number.

It is an amenable number.

11289521233 is a deficient number, since it is larger than the sum of its proper divisors (1).

11289521233 is an equidigital number, since it uses as much as digits as its factorization.

11289521233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The spelling of 11289521233 in words is "eleven billion, two hundred eighty-nine million, five hundred twenty-one thousand, two hundred thirty-three".