2001001103 has 2 divisors, whose sum is σ = 2001001104. Its totient is φ = 2001001102.

The previous prime is 2001001097. The next prime is 2001001109. The reversal of 2001001103 is 3011001002.

It is a balanced prime because it is at equal distance from previous prime (2001001097) and next prime (2001001109).

It is a cyclic number.

It is not a de Polignac number, because 2001001103 - 2¹² = 2000997007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001001109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000500551 + 1000500552.

It is an arithmetic number, because the mean of its divisors is an integer number (1000500552).

Almost surely, 2^2001001103 is an apocalyptic number.

2001001103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001001103 is an equidigital number, since it uses as much as digits as its factorization.

2001001103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 2001001103 is about 44732.5508215215. The cubic root of 2001001103 is about 1260.1312332867.

Adding to 2001001103 its reverse (3011001002), we get a palindrome (5012002105).

The spelling of 2001001103 in words is "two billion, one million, one thousand, one hundred three".