20203021311001 has 8 divisors (see below), whose sum is σ = 21339725437184. Its totient is φ = 19096629294960.

The previous prime is 20203021310977. The next prime is 20203021311029. The reversal of 20203021311001 is 10011312030202.

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 20203021311001 - 2³³ = 20194431376409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20203021611001) 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 7 ways as a sum of consecutive naturals, for example, 7578026166 + ... + 7578028831.

It is an arithmetic number, because the mean of its divisors is an integer number (2667465679648).

Almost surely, 2^{20203021311001} is an apocalyptic number.

It is an amenable number.

20203021311001 is a deficient number, since it is larger than the sum of its proper divisors (1136704126183).

20203021311001 is a wasteful number, since it uses less digits than its factorization.

20203021311001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15156055071.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20203021311001 its reverse (10011312030202), we get a palindrome (30214333341203).

The spelling of 20203021311001 in words is "twenty trillion, two hundred three billion, twenty-one million, three hundred eleven thousand, one".