2011423033 has 4 divisors (see below), whose sum is σ = 2021845108. Its totient is φ = 2001000960.

The previous prime is 2011423019. The next prime is 2011423069. The reversal of 2011423033 is 3303241102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1093757184 + 917665849 = 33072^2 + 30293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011423033 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011423033.

It is not an unprimeable number, because it can be changed into a prime (2011421033) 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, 5210748 + ... + 5211133.

It is an arithmetic number, because the mean of its divisors is an integer number (505461277).

Almost surely, 2^2011423033 is an apocalyptic number.

It is an amenable number.

2011423033 is a deficient number, since it is larger than the sum of its proper divisors (10422075).

2011423033 is a wasteful number, since it uses less digits than its factorization.

2011423033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422074.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2011423033 is about 44848.8911011187. The cubic root of 2011423033 is about 1262.3151842394.

Adding to 2011423033 its reverse (3303241102), we get a palindrome (5314664135).

The spelling of 2011423033 in words is "two billion, eleven million, four hundred twenty-three thousand, thirty-three".