11283028891 has 2 divisors, whose sum is σ = 11283028892. Its totient is φ = 11283028890.

The previous prime is 11283028747. The next prime is 11283028901. The reversal of 11283028891 is 19882038211.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11283028891 - 2²⁵ = 11249474459 is a prime.

It is not a weakly prime, because it can be changed into another prime (11283028291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5641514445 + 5641514446.

It is an arithmetic number, because the mean of its divisors is an integer number (5641514446).

Almost surely, 2^11283028891 is an apocalyptic number.

11283028891 is a deficient number, since it is larger than the sum of its proper divisors (1).

11283028891 is an equidigital number, since it uses as much as digits as its factorization.

11283028891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 43.

The spelling of 11283028891 in words is "eleven billion, two hundred eighty-three million, twenty-eight thousand, eight hundred ninety-one".