201313503 has 24 divisors (see below), whose sum is σ = 306465120. Its totient is φ = 127089600.

The previous prime is 201313501. The next prime is 201313537. The reversal of 201313503 is 305313102.

It is not a de Polignac number, because 201313503 - 2¹ = 201313501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201313501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16093 + ... + 25721.

It is an arithmetic number, because the mean of its divisors is an integer number (12769380).

Almost surely, 2^201313503 is an apocalyptic number.

201313503 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

201313503 is a deficient number, since it is larger than the sum of its proper divisors (105151617).

201313503 is a wasteful number, since it uses less digits than its factorization.

201313503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9759 (or 9756 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 201313503 is about 14188.4989692356. The cubic root of 201313503 is about 586.0809905259.

Adding to 201313503 its reverse (305313102), we get a palindrome (506626605).

The spelling of 201313503 in words is "two hundred one million, three hundred thirteen thousand, five hundred three".