11881541239 has 2 divisors, whose sum is σ = 11881541240. Its totient is φ = 11881541238.

The previous prime is 11881541209. The next prime is 11881541257. The reversal of 11881541239 is 93214518811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11881541239 is a prime.

It is a super-3 number, since 3×11881541239³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11881541195 and 11881541204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11881541209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5940770619 + 5940770620.

It is an arithmetic number, because the mean of its divisors is an integer number (5940770620).

Almost surely, 2^11881541239 is an apocalyptic number.

11881541239 is a deficient number, since it is larger than the sum of its proper divisors (1).

11881541239 is an equidigital number, since it uses as much as digits as its factorization.

11881541239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 43.

The spelling of 11881541239 in words is "eleven billion, eight hundred eighty-one million, five hundred forty-one thousand, two hundred thirty-nine".