103203563 has 4 divisors (see below), whose sum is σ = 103473408. Its totient is φ = 102933720.

The previous prime is 103203523. The next prime is 103203571. The reversal of 103203563 is 365302301.

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 103203563 - 2¹⁶ = 103138027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103203523) 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, 134348 + ... + 135113.

It is an arithmetic number, because the mean of its divisors is an integer number (25868352).

Almost surely, 2^103203563 is an apocalyptic number.

103203563 is a deficient number, since it is larger than the sum of its proper divisors (269845).

103203563 is an equidigital number, since it uses as much as digits as its factorization.

103203563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269844.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 103203563 is about 10158.9154440816. The cubic root of 103203563 is about 469.0634178196.

Adding to 103203563 its reverse (365302301), we get a palindrome (468505864).

The spelling of 103203563 in words is "one hundred three million, two hundred three thousand, five hundred sixty-three".