102304243 has 4 divisors (see below), whose sum is σ = 103831240. Its totient is φ = 100777248.

The previous prime is 102304229. The next prime is 102304261. The reversal of 102304243 is 342403201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342403201 = 7 ⋅48914743.

It is a cyclic number.

It is not a de Polignac number, because 102304243 - 2⁹ = 102303731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102304243.

It is not an unprimeable number, because it can be changed into a prime (102304273) 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, 763398 + ... + 763531.

It is an arithmetic number, because the mean of its divisors is an integer number (25957810).

Almost surely, 2^102304243 is an apocalyptic number.

102304243 is a deficient number, since it is larger than the sum of its proper divisors (1526997).

102304243 is an equidigital number, since it uses as much as digits as its factorization.

102304243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526996.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 102304243 is about 10114.5559961869. Note that the first 3 decimals coincide. The cubic root of 102304243 is about 467.6969618177.

Adding to 102304243 its reverse (342403201), we get a palindrome (444707444).

The spelling of 102304243 in words is "one hundred two million, three hundred four thousand, two hundred forty-three".