20031013203 has 4 divisors (see below), whose sum is σ = 26708017608. Its totient is φ = 13354008800.

The previous prime is 20031013201. The next prime is 20031013213. The reversal of 20031013203 is 30231013002.

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 20031013203 - 2¹ = 20031013201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20031013201) 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, 3338502198 + ... + 3338502203.

It is an arithmetic number, because the mean of its divisors is an integer number (6677004402).

Almost surely, 2^20031013203 is an apocalyptic number.

20031013203 is a deficient number, since it is larger than the sum of its proper divisors (6677004405).

20031013203 is an equidigital number, since it uses as much as digits as its factorization.

20031013203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6677004404.

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

Adding to 20031013203 its reverse (30231013002), we get a palindrome (50262026205).

The spelling of 20031013203 in words is "twenty billion, thirty-one million, thirteen thousand, two hundred three".