11543185873 has 2 divisors, whose sum is σ = 11543185874. Its totient is φ = 11543185872.

The previous prime is 11543185817. The next prime is 11543185987. The reversal of 11543185873 is 37858134511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5844143809 + 5699042064 = 76447^2 + 75492^2 .

It is an emirp because it is prime and its reverse (37858134511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11543185873 - 2¹⁷ = 11543054801 is a prime.

It is not a weakly prime, because it can be changed into another prime (11543185373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771592936 + 5771592937.

It is an arithmetic number, because the mean of its divisors is an integer number (5771592937).

Almost surely, 2^11543185873 is an apocalyptic number.

It is an amenable number.

11543185873 is a deficient number, since it is larger than the sum of its proper divisors (1).

11543185873 is an equidigital number, since it uses as much as digits as its factorization.

11543185873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 46.

The spelling of 11543185873 in words is "eleven billion, five hundred forty-three million, one hundred eighty-five thousand, eight hundred seventy-three".