20033031103 has 4 divisors (see below), whose sum is σ = 20033725048. Its totient is φ = 20032337160.

The previous prime is 20033031091. The next prime is 20033031113. The reversal of 20033031103 is 30113033002.

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

It is a cyclic number.

It is not a de Polignac number, because 20033031103 - 2⁵ = 20033031071 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 (20033031113) 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, 301701 + ... + 362062.

It is an arithmetic number, because the mean of its divisors is an integer number (5008431262).

Almost surely, 2^20033031103 is an apocalyptic number.

20033031103 is a deficient number, since it is larger than the sum of its proper divisors (693945).

20033031103 is an equidigital number, since it uses as much as digits as its factorization.

20033031103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693944.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20033031103 its reverse (30113033002), we get a palindrome (50146064105).

The spelling of 20033031103 in words is "twenty billion, thirty-three million, thirty-one thousand, one hundred three".