2011023203 has 4 divisors (see below), whose sum is σ = 2298312240. Its totient is φ = 1723734168.

The previous prime is 2011023181. The next prime is 2011023247. The reversal of 2011023203 is 3023201102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2011023203 - 2¹² = 2011019107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011023503) 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, 143644508 + ... + 143644521.

It is an arithmetic number, because the mean of its divisors is an integer number (574578060).

Almost surely, 2^2011023203 is an apocalyptic number.

2011023203 is a deficient number, since it is larger than the sum of its proper divisors (287289037).

2011023203 is an equidigital number, since it uses as much as digits as its factorization.

2011023203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287289036.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2011023203 is about 44844.4333557689. The cubic root of 2011023203 is about 1262.2315378329.

Adding to 2011023203 its reverse (3023201102), we get a palindrome (5034224305).

The spelling of 2011023203 in words is "two billion, eleven million, twenty-three thousand, two hundred three".