2001103331 has 2 divisors, whose sum is σ = 2001103332. Its totient is φ = 2001103330.

The previous prime is 2001103267. The next prime is 2001103333. The reversal of 2001103331 is 1333011002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001103331 - 2⁶ = 2001103267 is a prime.

It is a super-2 number, since 2×2001103331² = 8008829082678591122, which contains 22 as substring.

Together with 2001103333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2001103333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000551665 + 1000551666.

It is an arithmetic number, because the mean of its divisors is an integer number (1000551666).

Almost surely, 2^2001103331 is an apocalyptic number.

2001103331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001103331 is an equidigital number, since it uses as much as digits as its factorization.

2001103331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 2001103331 is about 44733.6934647699. The cubic root of 2001103331 is about 1260.1526922957.

Adding to 2001103331 its reverse (1333011002), we get a palindrome (3334114333).

The spelling of 2001103331 in words is "two billion, one million, one hundred three thousand, three hundred thirty-one".