11811310939 has 2 divisors, whose sum is σ = 11811310940. Its totient is φ = 11811310938.

The previous prime is 11811310937. The next prime is 11811310967. The reversal of 11811310939 is 93901311811.

It is a weak prime.

It is an emirp because it is prime and its reverse (93901311811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11811310939 - 2¹ = 11811310937 is a prime.

Together with 11811310937, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11811310898 and 11811310907.

It is not a weakly prime, because it can be changed into another prime (11811310937) 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, 5905655469 + 5905655470.

It is an arithmetic number, because the mean of its divisors is an integer number (5905655470).

Almost surely, 2^11811310939 is an apocalyptic number.

11811310939 is a deficient number, since it is larger than the sum of its proper divisors (1).

11811310939 is an equidigital number, since it uses as much as digits as its factorization.

11811310939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 11811310939 in words is "eleven billion, eight hundred eleven million, three hundred ten thousand, nine hundred thirty-nine".