11233240091 has 2 divisors, whose sum is σ = 11233240092. Its totient is φ = 11233240090.

The previous prime is 11233240087. The next prime is 11233240121. The reversal of 11233240091 is 19004233211.

11233240091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11233240091 - 2² = 11233240087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11233240091.

It is not a weakly prime, because it can be changed into another prime (11233240691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5616620045 + 5616620046.

It is an arithmetic number, because the mean of its divisors is an integer number (5616620046).

Almost surely, 2^11233240091 is an apocalyptic number.

11233240091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11233240091 is an equidigital number, since it uses as much as digits as its factorization.

11233240091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 11233240091 in words is "eleven billion, two hundred thirty-three million, two hundred forty thousand, ninety-one".