11401111 has 2 divisors, whose sum is σ = 11401112. Its totient is φ = 11401110.

The previous prime is 11401099. The next prime is 11401127. The reversal of 11401111 is 11110411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11401111 - 2⁵ = 11401079 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11401141) 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, 5700555 + 5700556.

It is an arithmetic number, because the mean of its divisors is an integer number (5700556).

Almost surely, 2^11401111 is an apocalyptic number.

11401111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11401111 is an equidigital number, since it uses as much as digits as its factorization.

11401111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 11401111 is about 3376.5531241193. The cubic root of 11401111 is about 225.0690224455.

Adding to 11401111 its reverse (11110411), we get a palindrome (22511522).

The spelling of 11401111 in words is "eleven million, four hundred one thousand, one hundred eleven".