102642203 has 4 divisors (see below), whose sum is σ = 102674448. Its totient is φ = 102609960.

The previous prime is 102642167. The next prime is 102642259. The reversal of 102642203 is 302246201.

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

It is a cyclic number.

It is not a de Polignac number, because 102642203 - 2¹⁸ = 102380059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102642263) 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, 10751 + ... + 17912.

It is an arithmetic number, because the mean of its divisors is an integer number (25668612).

Almost surely, 2^102642203 is an apocalyptic number.

102642203 is a deficient number, since it is larger than the sum of its proper divisors (32245).

102642203 is an equidigital number, since it uses as much as digits as its factorization.

102642203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32244.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 102642203 is about 10131.2488371375. The cubic root of 102642203 is about 468.2114049038.

Adding to 102642203 its reverse (302246201), we get a palindrome (404888404).

The spelling of 102642203 in words is "one hundred two million, six hundred forty-two thousand, two hundred three".