11111623 has 2 divisors, whose sum is σ = 11111624. Its totient is φ = 11111622.

The previous prime is 11111621. The next prime is 11111651. The reversal of 11111623 is 32611111.

11111623 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 11111623 - 2¹ = 11111621 is a prime.

Together with 11111621, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11111597 and 11111606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555811 + 5555812.

It is an arithmetic number, because the mean of its divisors is an integer number (5555812).

Almost surely, 2^11111623 is an apocalyptic number.

11111623 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111623 is an equidigital number, since it uses as much as digits as its factorization.

11111623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 16.

The square root of 11111623 is about 3333.4101157823. The cubic root of 11111623 is about 223.1477433943.

Adding to 11111623 its reverse (32611111), we get a palindrome (43722734).

The spelling of 11111623 in words is "eleven million, one hundred eleven thousand, six hundred twenty-three".