244124313991 has 2 divisors, whose sum is σ = 244124313992. Its totient is φ = 244124313990.

The previous prime is 244124313989. The next prime is 244124314019. The reversal of 244124313991 is 199313421442.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 244124313991 - 2¹ = 244124313989 is a prime.

Together with 244124313989, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244124313941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122062156995 + 122062156996.

It is an arithmetic number, because the mean of its divisors is an integer number (122062156996).

Almost surely, 2^244124313991 is an apocalyptic number.

244124313991 is a deficient number, since it is larger than the sum of its proper divisors (1).

244124313991 is an equidigital number, since it uses as much as digits as its factorization.

244124313991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The spelling of 244124313991 in words is "two hundred forty-four billion, one hundred twenty-four million, three hundred thirteen thousand, nine hundred ninety-one".