30203313103 has 4 divisors (see below), whose sum is σ = 30203739720. Its totient is φ = 30202886488.

The previous prime is 30203313089. The next prime is 30203313139. The reversal of 30203313103 is 30131330203.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30203313103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30203313163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78868 + ... + 258121.

It is an arithmetic number, because the mean of its divisors is an integer number (7550934930).

Almost surely, 2^30203313103 is an apocalyptic number.

30203313103 is a deficient number, since it is larger than the sum of its proper divisors (426617).

30203313103 is an equidigital number, since it uses as much as digits as its factorization.

30203313103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426616.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 30203313103 its reverse (30131330203), we get a palindrome (60334643306).

The spelling of 30203313103 in words is "thirty billion, two hundred three million, three hundred thirteen thousand, one hundred three".