2011311003 has 16 divisors (see below), whose sum is σ = 2936989440. Its totient is φ = 1216749984.

The previous prime is 2011310999. The next prime is 2011311011. The reversal of 2011311003 is 3001131102.

It is not a de Polignac number, because 2011311003 - 2² = 2011310999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2011311003.

It is not an unprimeable number, because it can be changed into a prime (2011311013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434751 + ... + 439352.

It is an arithmetic number, because the mean of its divisors is an integer number (183561840).

Almost surely, 2^2011311003 is an apocalyptic number.

2011311003 is a deficient number, since it is larger than the sum of its proper divisors (925678437).

2011311003 is a wasteful number, since it uses less digits than its factorization.

2011311003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874178.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 2011311003 is about 44847.6421119327. The cubic root of 2011311003 is about 1262.2917481292.

Adding to 2011311003 its reverse (3001131102), we get a palindrome (5012442105).

The spelling of 2011311003 in words is "two billion, eleven million, three hundred eleven thousand, three".