2011113993 has 16 divisors (see below), whose sum is σ = 3068149760. Its totient is φ = 1147859856.

The previous prime is 2011113977. The next prime is 2011114019. The reversal of 2011113993 is 3993111102.

It is a happy number.

It is not a de Polignac number, because 2011113993 - 2⁴ = 2011113977 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 2011113993.

It is not an unprimeable number, because it can be changed into a prime (2011113893) 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, 37705 + ... + 73782.

It is an arithmetic number, because the mean of its divisors is an integer number (191759360).

Almost surely, 2^2011113993 is an apocalyptic number.

It is an amenable number.

2011113993 is a deficient number, since it is larger than the sum of its proper divisors (1057035767).

2011113993 is a wasteful number, since it uses less digits than its factorization.

2011113993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112356.

The product of its (nonzero) digits is 1458, while the sum is 30.

The square root of 2011113993 is about 44845.4456216013. The cubic root of 2011113993 is about 1262.2505325212.

The spelling of 2011113993 in words is "two billion, eleven million, one hundred thirteen thousand, nine hundred ninety-three".