2103728243 has 8 divisors (see below), whose sum is σ = 2139617280. Its totient is φ = 2067971400.

The previous prime is 2103728239. The next prime is 2103728261. The reversal of 2103728243 is 3428273012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2103728243 - 2² = 2103728239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103728213) 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 in 7 ways as a sum of consecutive naturals, for example, 683 + ... + 64868.

It is an arithmetic number, because the mean of its divisors is an integer number (267452160).

Almost surely, 2^2103728243 is an apocalyptic number.

2103728243 is a deficient number, since it is larger than the sum of its proper divisors (35889037).

2103728243 is an equidigital number, since it uses as much as digits as its factorization.

2103728243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66097.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 2103728243 is about 45866.4173769873. The cubic root of 2103728243 is about 1281.3365439919.

The spelling of 2103728243 in words is "two billion, one hundred three million, seven hundred twenty-eight thousand, two hundred forty-three".