11125643 has 2 divisors, whose sum is σ = 11125644. Its totient is φ = 11125642.

The previous prime is 11125627. The next prime is 11125651. The reversal of 11125643 is 34652111.

11125643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11125643 - 2⁴ = 11125627 is a prime.

It is not a weakly prime, because it can be changed into another prime (11125613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5562821 + 5562822.

It is an arithmetic number, because the mean of its divisors is an integer number (5562822).

Almost surely, 2^11125643 is an apocalyptic number.

11125643 is a deficient number, since it is larger than the sum of its proper divisors (1).

11125643 is an equidigital number, since it uses as much as digits as its factorization.

11125643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 23.

The square root of 11125643 is about 3335.5124044141. The cubic root of 11125643 is about 223.2415555669.

Adding to 11125643 its reverse (34652111), we get a palindrome (45777754).

The spelling of 11125643 in words is "eleven million, one hundred twenty-five thousand, six hundred forty-three".