11543411941 has 2 divisors, whose sum is σ = 11543411942. Its totient is φ = 11543411940.

The previous prime is 11543411903. The next prime is 11543411947. The reversal of 11543411941 is 14911434511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8042323041 + 3501088900 = 89679^2 + 59170^2 .

It is an emirp because it is prime and its reverse (14911434511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11543411941 - 2²¹ = 11541314789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11543411897 and 11543411906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11543411947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771705970 + 5771705971.

It is an arithmetic number, because the mean of its divisors is an integer number (5771705971).

Almost surely, 2^11543411941 is an apocalyptic number.

It is an amenable number.

11543411941 is a deficient number, since it is larger than the sum of its proper divisors (1).

11543411941 is an equidigital number, since it uses as much as digits as its factorization.

11543411941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 34.

The spelling of 11543411941 in words is "eleven billion, five hundred forty-three million, four hundred eleven thousand, nine hundred forty-one".