11700081 has 12 divisors (see below), whose sum is σ = 16967808. Its totient is φ = 7768824.

The previous prime is 11700061. The next prime is 11700083. The reversal of 11700081 is 18000711.

11700081 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11700081 - 2⁵ = 11700049 is a prime.

It is a super-2 number, since 2×11700081² = 273783790813122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11700083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105 + ... + 4838.

It is an arithmetic number, because the mean of its divisors is an integer number (1413984).

Almost surely, 2^11700081 is an apocalyptic number.

It is an amenable number.

11700081 is a deficient number, since it is larger than the sum of its proper divisors (5267727).

11700081 is a wasteful number, since it uses less digits than its factorization.

11700081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5212 (or 5209 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The square root of 11700081 is about 3420.5381155602. The cubic root of 11700081 is about 227.0193919534.

Adding to 11700081 its reverse (18000711), we get a palindrome (29700792).

The spelling of 11700081 in words is "eleven million, seven hundred thousand, eighty-one".