11456111 has 2 divisors, whose sum is σ = 11456112. Its totient is φ = 11456110.

The previous prime is 11456101. The next prime is 11456117. The reversal of 11456111 is 11165411.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (11165411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11456111 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11456117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5728055 + 5728056.

It is an arithmetic number, because the mean of its divisors is an integer number (5728056).

Almost surely, 2^11456111 is an apocalyptic number.

11456111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11456111 is an equidigital number, since it uses as much as digits as its factorization.

11456111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 20.

The square root of 11456111 is about 3384.6877256255. The cubic root of 11456111 is about 225.4303598605.

The spelling of 11456111 in words is "eleven million, four hundred fifty-six thousand, one hundred eleven".