2011323004 has 12 divisors (see below), whose sum is σ = 3522619800. Its totient is φ = 1004860208.

The previous prime is 2011323001. The next prime is 2011323011. The reversal of 2011323004 is 4003231102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011323001) 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 3 ways as a sum of consecutive naturals, for example, 194659 + ... + 204730.

It is an arithmetic number, because the mean of its divisors is an integer number (293551650).

Almost surely, 2^2011323004 is an apocalyptic number.

It is an amenable number.

2011323004 is a deficient number, since it is larger than the sum of its proper divisors (1511296796).

2011323004 is a wasteful number, since it uses less digits than its factorization.

2011323004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400652 (or 400650 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2011323004 is about 44847.7759091797. The cubic root of 2011323004 is about 1262.2942587194.

Adding to 2011323004 its reverse (4003231102), we get a palindrome (6014554106).

The spelling of 2011323004 in words is "two billion, eleven million, three hundred twenty-three thousand, four".