2011115535 has 64 divisors (see below), whose sum is σ = 3818174976. Its totient is φ = 891072000.

The previous prime is 2011115531. The next prime is 2011115543. The reversal of 2011115535 is 5355111102.

It is not a de Polignac number, because 2011115535 - 2² = 2011115531 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011115531) 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 63 ways as a sum of consecutive naturals, for example, 212004 + ... + 221286.

It is an arithmetic number, because the mean of its divisors is an integer number (59658984).

Almost surely, 2^2011115535 is an apocalyptic number.

2011115535 is a deficient number, since it is larger than the sum of its proper divisors (1807059441).

2011115535 is a wasteful number, since it uses less digits than its factorization.

2011115535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9416.

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 2011115535 is about 44845.4628139793. The cubic root of 2011115535 is about 1262.2508551268.

Adding to 2011115535 its reverse (5355111102), we get a palindrome (7366226637).

The spelling of 2011115535 in words is "two billion, eleven million, one hundred fifteen thousand, five hundred thirty-five".