11345911 has 2 divisors, whose sum is σ = 11345912. Its totient is φ = 11345910.

The previous prime is 11345909. The next prime is 11345921. The reversal of 11345911 is 11954311.

It is a weak prime.

It is an emirp because it is prime and its reverse (11954311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11345911 - 2¹ = 11345909 is a prime.

Together with 11345909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11345921) 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, 5672955 + 5672956.

It is an arithmetic number, because the mean of its divisors is an integer number (5672956).

Almost surely, 2^11345911 is an apocalyptic number.

11345911 is a deficient number, since it is larger than the sum of its proper divisors (1).

11345911 is an equidigital number, since it uses as much as digits as its factorization.

11345911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 25.

The square root of 11345911 is about 3368.3691899790. The cubic root of 11345911 is about 224.7052007484.

Subtracting 11345911 from its reverse (11954311), we obtain a square (608400 = 780²).

The spelling of 11345911 in words is "eleven million, three hundred forty-five thousand, nine hundred eleven".