12119911 has 4 divisors (see below), whose sum is σ = 12187800. Its totient is φ = 12052024.

The previous prime is 12119903. The next prime is 12119923. The reversal of 12119911 is 11991121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12119911 - 2³ = 12119903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12119711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33676 + ... + 34033.

It is an arithmetic number, because the mean of its divisors is an integer number (3046950).

Almost surely, 2^12119911 is an apocalyptic number.

12119911 is a deficient number, since it is larger than the sum of its proper divisors (67889).

12119911 is an equidigital number, since it uses as much as digits as its factorization.

12119911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67888.

The product of its digits is 162, while the sum is 25.

The square root of 12119911 is about 3481.3662547914. The cubic root of 12119911 is about 229.7028993115.

The spelling of 12119911 in words is "twelve million, one hundred nineteen thousand, nine hundred eleven".