2011244123 has 16 divisors (see below), whose sum is σ = 2347272960. Its totient is φ = 1687710816.

The previous prime is 2011244111. The next prime is 2011244141. The reversal of 2011244123 is 3214421102.

It is a cyclic number.

It is not a de Polignac number, because 2011244123 - 2¹⁸ = 2010981979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011244095 and 2011244104.

It is not an unprimeable number, because it can be changed into a prime (2011244423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63293 + ... + 89601.

It is an arithmetic number, because the mean of its divisors is an integer number (146704560).

Almost surely, 2^2011244123 is an apocalyptic number.

2011244123 is a deficient number, since it is larger than the sum of its proper divisors (336028837).

2011244123 is a wasteful number, since it uses less digits than its factorization.

2011244123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26546.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2011244123 is about 44846.8964701015. The cubic root of 2011244123 is about 1262.2777567561.

Adding to 2011244123 its reverse (3214421102), we get a palindrome (5225665225).

The spelling of 2011244123 in words is "two billion, eleven million, two hundred forty-four thousand, one hundred twenty-three".