11113789 has 2 divisors, whose sum is σ = 11113790. Its totient is φ = 11113788.

The previous prime is 11113787. The next prime is 11113793. The reversal of 11113789 is 98731111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11108889 + 4900 = 3333^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 11113789 - 2¹ = 11113787 is a prime.

Together with 11113787, it forms a pair of twin primes.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 11113789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11113787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556894 + 5556895.

It is an arithmetic number, because the mean of its divisors is an integer number (5556895).

Almost surely, 2^11113789 is an apocalyptic number.

It is an amenable number.

11113789 is a deficient number, since it is larger than the sum of its proper divisors (1).

11113789 is an equidigital number, since it uses as much as digits as its factorization.

11113789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 31.

The square root of 11113789 is about 3333.7349924672. The cubic root of 11113789 is about 223.1622419247.

It can be divided in two parts, 1111 and 3789, that added together give a square (4900 = 70²).

The spelling of 11113789 in words is "eleven million, one hundred thirteen thousand, seven hundred eighty-nine".