11994411361 has 3 divisors (see below), whose sum is σ = 11994520881. Its totient is φ = 11994301842.

The previous prime is 11994411343. The next prime is 11994411367. The reversal of 11994411361 is 16311449911.

The square root of 11994411361 is 109519.

It is a perfect power (a square), and thus also a powerful number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16311449911 = 39451 ⋅413461.

It is a de Polignac number, because none of the positive numbers 2^k-11994411361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11994411367) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 54760 + ... + 164278.

It is an arithmetic number, because the mean of its divisors is an integer number (3998173627).

Almost surely, 2^11994411361 is an apocalyptic number.

11994411361 is the 109519-th square number.

11994411361 is the 54760-th centered octagonal number.

It is an amenable number.

11994411361 is a deficient number, since it is larger than the sum of its proper divisors (109520).

11994411361 is an frugal number, since it uses more digits than its factorization.

11994411361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219038 (or 109519 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The spelling of 11994411361 in words is "eleven billion, nine hundred ninety-four million, four hundred eleven thousand, three hundred sixty-one".