109203943 has 2 divisors, whose sum is σ = 109203944. Its totient is φ = 109203942.

The previous prime is 109203901. The next prime is 109203949. The reversal of 109203943 is 349302901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109203943 - 2¹⁷ = 109072871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109203949) 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 as a sum of consecutive naturals, namely, 54601971 + 54601972.

It is an arithmetic number, because the mean of its divisors is an integer number (54601972).

Almost surely, 2^109203943 is an apocalyptic number.

109203943 is a deficient number, since it is larger than the sum of its proper divisors (1).

109203943 is an equidigital number, since it uses as much as digits as its factorization.

109203943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 109203943 is about 10450.0690428341. The cubic root of 109203943 is about 477.9833549289.

The spelling of 109203943 in words is "one hundred nine million, two hundred three thousand, nine hundred forty-three".