2011421233 has 4 divisors (see below), whose sum is σ = 2017390180. Its totient is φ = 2005452288.

The previous prime is 2011421227. The next prime is 2011421257. The reversal of 2011421233 is 3321241102.

It is a happy number.

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 1068439969 + 942981264 = 32687^2 + 30708^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011421233 - 2⁵ = 2011421201 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 2011421233.

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, 2983968 + ... + 2984641.

It is an arithmetic number, because the mean of its divisors is an integer number (504347545).

Almost surely, 2^2011421233 is an apocalyptic number.

It is an amenable number.

2011421233 is a deficient number, since it is larger than the sum of its proper divisors (5968947).

2011421233 is an equidigital number, since it uses as much as digits as its factorization.

2011421233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968946.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2011421233 is about 44848.8710337284. The cubic root of 2011421233 is about 1262.3148076954.

Adding to 2011421233 its reverse (3321241102), we get a palindrome (5332662335).

The spelling of 2011421233 in words is "two billion, eleven million, four hundred twenty-one thousand, two hundred thirty-three".