20321311010003 has 16 divisors (see below), whose sum is σ = 22081168972800. Its totient is φ = 18630500761440.

The previous prime is 20321311009973. The next prime is 20321311010071. The reversal of 20321311010003 is 30001011312302.

It is a cyclic number.

It is not a de Polignac number, because 20321311010003 - 2¹² = 20321311005907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321311012003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57651725 + ... + 58003137.

It is an arithmetic number, because the mean of its divisors is an integer number (1380073060800).

Almost surely, 2^{20321311010003} is an apocalyptic number.

20321311010003 is a deficient number, since it is larger than the sum of its proper divisors (1759857962797).

20321311010003 is a wasteful number, since it uses less digits than its factorization.

20321311010003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449642.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20321311010003 its reverse (30001011312302), we get a palindrome (50322322322305).

The spelling of 20321311010003 in words is "twenty trillion, three hundred twenty-one billion, three hundred eleven million, ten thousand, three".