11943721183 has 2 divisors, whose sum is σ = 11943721184. Its totient is φ = 11943721182.

The previous prime is 11943721159. The next prime is 11943721201. The reversal of 11943721183 is 38112734911.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11943721183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11943724183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5971860591 + 5971860592.

It is an arithmetic number, because the mean of its divisors is an integer number (5971860592).

Almost surely, 2^11943721183 is an apocalyptic number.

11943721183 is a deficient number, since it is larger than the sum of its proper divisors (1).

11943721183 is an equidigital number, since it uses as much as digits as its factorization.

11943721183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The spelling of 11943721183 in words is "eleven billion, nine hundred forty-three million, seven hundred twenty-one thousand, one hundred eighty-three".