20130603 has 8 divisors (see below), whose sum is σ = 26904528. Its totient is φ = 13388544.

The previous prime is 20130599. The next prime is 20130647. The reversal of 20130603 is 30603102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20130603 - 2² = 20130599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20130653) 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 7 ways as a sum of consecutive naturals, for example, 6450 + ... + 9047.

It is an arithmetic number, because the mean of its divisors is an integer number (3363066).

Almost surely, 2^20130603 is an apocalyptic number.

20130603 is a deficient number, since it is larger than the sum of its proper divisors (6773925).

20130603 is a wasteful number, since it uses less digits than its factorization.

20130603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15933.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 20130603 is about 4486.7140537369. The cubic root of 20130603 is about 272.0313319948.

Adding to 20130603 its reverse (30603102), we get a palindrome (50733705).

The spelling of 20130603 in words is "twenty million, one hundred thirty thousand, six hundred three".