20313333103 has 4 divisors (see below), whose sum is σ = 23215237840. Its totient is φ = 17411428368.

The previous prime is 20313333077. The next prime is 20313333107. The reversal of 20313333103 is 30133331302.

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-20313333103 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 (20313333107) 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, 1450952358 + ... + 1450952371.

It is an arithmetic number, because the mean of its divisors is an integer number (5803809460).

Almost surely, 2^20313333103 is an apocalyptic number.

20313333103 is a deficient number, since it is larger than the sum of its proper divisors (2901904737).

20313333103 is an equidigital number, since it uses as much as digits as its factorization.

20313333103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901904736.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 20313333103 its reverse (30133331302), we get a palindrome (50446664405).

The spelling of 20313333103 in words is "twenty billion, three hundred thirteen million, three hundred thirty-three thousand, one hundred three".