10111943 has 4 divisors (see below), whose sum is σ = 10118808. Its totient is φ = 10105080.

The previous prime is 10111939. The next prime is 10111949. The reversal of 10111943 is 34911101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34911101 = 139 ⋅251159.

It is a cyclic number.

It is not a de Polignac number, because 10111943 - 2² = 10111939 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221 + ... + 4502.

It is an arithmetic number, because the mean of its divisors is an integer number (2529702).

Almost surely, 2^10111943 is an apocalyptic number.

10111943 is a deficient number, since it is larger than the sum of its proper divisors (6865).

10111943 is an equidigital number, since it uses as much as digits as its factorization.

10111943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6864.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 10111943 is about 3179.9281438422. The cubic root of 10111943 is about 216.2444007148.

The spelling of 10111943 in words is "ten million, one hundred eleven thousand, nine hundred forty-three".