20201111003 has 8 divisors (see below), whose sum is σ = 20290079040. Its totient is φ = 20112180480.

The previous prime is 20201110987. The next prime is 20201111089. The reversal of 20201111003 is 30011110202.

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

It is a cyclic number.

It is not a de Polignac number, because 20201111003 - 2⁴ = 20201110987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20201111803) 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 7 ways as a sum of consecutive naturals, for example, 1945301 + ... + 1955657.

It is an arithmetic number, because the mean of its divisors is an integer number (2536259880).

Almost surely, 2^20201111003 is an apocalyptic number.

20201111003 is a deficient number, since it is larger than the sum of its proper divisors (88968037).

20201111003 is a wasteful number, since it uses less digits than its factorization.

20201111003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18757.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20201111003 its reverse (30011110202), we get a palindrome (50212221205).

The spelling of 20201111003 in words is "twenty billion, two hundred one million, one hundred eleven thousand, three".