11231789 has 2 divisors, whose sum is σ = 11231790. Its totient is φ = 11231788.

The previous prime is 11231783. The next prime is 11231791. The reversal of 11231789 is 98713211.

11231789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9815689 + 1416100 = 3133^2 + 1190^2 .

It is a cyclic number.

It is not a de Polignac number, because 11231789 - 2¹² = 11227693 is a prime.

Together with 11231791, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615894 + 5615895.

It is an arithmetic number, because the mean of its divisors is an integer number (5615895).

Almost surely, 2^11231789 is an apocalyptic number.

It is an amenable number.

11231789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231789 is an equidigital number, since it uses as much as digits as its factorization.

11231789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 32.

The square root of 11231789 is about 3351.3861311404. The cubic root of 11231789 is about 223.9492670501.

The spelling of 11231789 in words is "eleven million, two hundred thirty-one thousand, seven hundred eighty-nine".