2001331103303 has 32 divisors (see below), whose sum is σ = 2353956691968. Its totient is φ = 1665583430400.

The previous prime is 2001331103287. The next prime is 2001331103309. The reversal of 2001331103303 is 3033011331002.

It is a cyclic number.

It is not a de Polignac number, because 2001331103303 - 2⁴ = 2001331103287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001331103309) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273364883 + ... + 273372203.

It is an arithmetic number, because the mean of its divisors is an integer number (73561146624).

Almost surely, 2^{2001331103303} is an apocalyptic number.

2001331103303 is a deficient number, since it is larger than the sum of its proper divisors (352625588665).

2001331103303 is a wasteful number, since it uses less digits than its factorization.

2001331103303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9423.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 2001331103303 its reverse (3033011331002), we get a palindrome (5034342434305).

The spelling of 2001331103303 in words is "two trillion, one billion, three hundred thirty-one million, one hundred three thousand, three hundred three".