20331032111003 has 4 divisors (see below), whose sum is σ = 20331044654688. Its totient is φ = 20331019567320.

The previous prime is 20331032110999. The next prime is 20331032111011. The reversal of 20331032111003 is 30011123013302.

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 20331032111003 - 2² = 20331032110999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20331032117003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3403283 + ... + 7228028.

It is an arithmetic number, because the mean of its divisors is an integer number (5082761163672).

Almost surely, 2^{20331032111003} is an apocalyptic number.

20331032111003 is a deficient number, since it is larger than the sum of its proper divisors (12543685).

20331032111003 is a wasteful number, since it uses less digits than its factorization.

20331032111003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12543684.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20331032111003 its reverse (30011123013302), we get a palindrome (50342155124305).

The spelling of 20331032111003 in words is "twenty trillion, three hundred thirty-one billion, thirty-two million, one hundred eleven thousand, three".