2011344403 has 4 divisors (see below), whose sum is σ = 2011552920. Its totient is φ = 2011135888.

The previous prime is 2011344359. The next prime is 2011344431. The reversal of 2011344403 is 3044431102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011344403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011344703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89050 + ... + 109327.

It is an arithmetic number, because the mean of its divisors is an integer number (502888230).

Almost surely, 2^2011344403 is an apocalyptic number.

2011344403 is a deficient number, since it is larger than the sum of its proper divisors (208517).

2011344403 is a wasteful number, since it uses less digits than its factorization.

2011344403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208516.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2011344403 is about 44848.0144822488. The cubic root of 2011344403 is about 1262.2987353315.

Adding to 2011344403 its reverse (3044431102), we get a palindrome (5055775505).

It can be divided in two parts, 20113 and 44403, that added together give a square (64516 = 254²).

The spelling of 2011344403 in words is "two billion, eleven million, three hundred forty-four thousand, four hundred three".