11900011 has 4 divisors (see below), whose sum is σ = 11907000. Its totient is φ = 11893024.

The previous prime is 11900003. The next prime is 11900033. The reversal of 11900011 is 11000911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11900011 - 2³ = 11900003 is a prime.

It is a super-2 number, since 2×11900011² = 283220523600242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11899964 and 11900000.

It is not an unprimeable number, because it can be changed into a prime (11900041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915 + ... + 4963.

It is an arithmetic number, because the mean of its divisors is an integer number (2976750).

Almost surely, 2^11900011 is an apocalyptic number.

11900011 is a deficient number, since it is larger than the sum of its proper divisors (6989).

11900011 is an equidigital number, since it uses as much as digits as its factorization.

11900011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6988.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 11900011 is about 3449.6392565020. The cubic root of 11900011 is about 228.3051917413.

Adding to 11900011 its reverse (11000911), we get a palindrome (22900922).

The spelling of 11900011 in words is "eleven million, nine hundred thousand, eleven".