102203243 has 4 divisors (see below), whose sum is σ = 103878768. Its totient is φ = 100527720.

The previous prime is 102203219. The next prime is 102203251. The reversal of 102203243 is 342302201.

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 102203243 - 2⁸ = 102202987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102203203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837671 + ... + 837792.

It is an arithmetic number, because the mean of its divisors is an integer number (25969692).

Almost surely, 2^102203243 is an apocalyptic number.

102203243 is a deficient number, since it is larger than the sum of its proper divisors (1675525).

102203243 is an equidigital number, since it uses as much as digits as its factorization.

102203243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675524.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 102203243 is about 10109.5619588586. The cubic root of 102203243 is about 467.5429996576.

Adding to 102203243 its reverse (342302201), we get a palindrome (444505444).

The spelling of 102203243 in words is "one hundred two million, two hundred three thousand, two hundred forty-three".