11111244439987 has 2 divisors, whose sum is σ = 11111244439988. Its totient is φ = 11111244439986.

The previous prime is 11111244439979. The next prime is 11111244440011. The reversal of 11111244439987 is 78993444211111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11111244439987 - 2³ = 11111244439979 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111244439927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555622219993 + 5555622219994.

It is an arithmetic number, because the mean of its divisors is an integer number (5555622219994).

Almost surely, 2^{11111244439987} is an apocalyptic number.

11111244439987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111244439987 is an equidigital number, since it uses as much as digits as its factorization.

11111244439987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 55.

The spelling of 11111244439987 in words is "eleven trillion, one hundred eleven billion, two hundred forty-four million, four hundred thirty-nine thousand, nine hundred eighty-seven".