11745431543 has 2 divisors, whose sum is σ = 11745431544. Its totient is φ = 11745431542.

The previous prime is 11745431519. The next prime is 11745431591. The reversal of 11745431543 is 34513454711.

It is a weak prime.

It is an emirp because it is prime and its reverse (34513454711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11745431543 - 2¹⁸ = 11745169399 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11745431497 and 11745431506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11745421543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5872715771 + 5872715772.

It is an arithmetic number, because the mean of its divisors is an integer number (5872715772).

Almost surely, 2^11745431543 is an apocalyptic number.

11745431543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11745431543 is an equidigital number, since it uses as much as digits as its factorization.

11745431543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The spelling of 11745431543 in words is "eleven billion, seven hundred forty-five million, four hundred thirty-one thousand, five hundred forty-three".