12100943 has 4 divisors (see below), whose sum is σ = 12491328. Its totient is φ = 11710560.

The previous prime is 12100939. The next prime is 12100969. The reversal of 12100943 is 34900121.

12100943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12100943 - 2² = 12100939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100973) 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, 195146 + ... + 195207.

It is an arithmetic number, because the mean of its divisors is an integer number (3122832).

Almost surely, 2^12100943 is an apocalyptic number.

12100943 is a deficient number, since it is larger than the sum of its proper divisors (390385).

12100943 is an equidigital number, since it uses as much as digits as its factorization.

12100943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390384.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12100943 is about 3478.6409702641. The cubic root of 12100943 is about 229.5830062552.

The spelling of 12100943 in words is "twelve million, one hundred thousand, nine hundred forty-three".