2011240623 has 48 divisors (see below), whose sum is σ = 3162378240. Its totient is φ = 1133604864.

The previous prime is 2011240613. The next prime is 2011240631. The reversal of 2011240623 is 3260421102.

It is not a de Polignac number, because 2011240623 - 2⁶ = 2011240559 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2011240623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011240603) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5251090 + ... + 5251472.

It is an arithmetic number, because the mean of its divisors is an integer number (65882880).

Almost surely, 2^2011240623 is an apocalyptic number.

2011240623 is a deficient number, since it is larger than the sum of its proper divisors (1151137617).

2011240623 is a wasteful number, since it uses less digits than its factorization.

2011240623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 789 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2011240623 is about 44846.8574484322. The cubic root of 2011240623 is about 1262.2770245435.

Adding to 2011240623 its reverse (3260421102), we get a palindrome (5271661725).

The spelling of 2011240623 in words is "two billion, eleven million, two hundred forty thousand, six hundred twenty-three".