523303203 has 4 divisors (see below), whose sum is σ = 697737608. Its totient is φ = 348868800.

The previous prime is 523303181. The next prime is 523303259. The reversal of 523303203 is 302303325.

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

It is not a de Polignac number, because 523303203 - 2⁹ = 523302691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 523303203.

It is not an unprimeable number, because it can be changed into a prime (523303103) 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, 87217198 + ... + 87217203.

It is an arithmetic number, because the mean of its divisors is an integer number (174434402).

Almost surely, 2^523303203 is an apocalyptic number.

523303203 is a deficient number, since it is larger than the sum of its proper divisors (174434405).

523303203 is a wasteful number, since it uses less digits than its factorization.

523303203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174434404.

The product of its (nonzero) digits is 1620, while the sum is 21.

The square root of 523303203 is about 22875.8213623030. The cubic root of 523303203 is about 805.8442863261.

Adding to 523303203 its reverse (302303325), we get a palindrome (825606528).

The spelling of 523303203 in words is "five hundred twenty-three million, three hundred three thousand, two hundred three".