112439991361 has 2 divisors, whose sum is σ = 112439991362. Its totient is φ = 112439991360.

The previous prime is 112439991347. The next prime is 112439991413. The reversal of 112439991361 is 163199934211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109706688400 + 2733302961 = 331220^2 + 52281^2 .

It is an emirp because it is prime and its reverse (163199934211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112439991361 - 2¹⁵ = 112439958593 is a prime.

It is not a weakly prime, because it can be changed into another prime (112439995361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56219995680 + 56219995681.

It is an arithmetic number, because the mean of its divisors is an integer number (56219995681).

Almost surely, 2^112439991361 is an apocalyptic number.

It is an amenable number.

112439991361 is a deficient number, since it is larger than the sum of its proper divisors (1).

112439991361 is an equidigital number, since it uses as much as digits as its factorization.

112439991361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 314928, while the sum is 49.

The spelling of 112439991361 in words is "one hundred twelve billion, four hundred thirty-nine million, nine hundred ninety-one thousand, three hundred sixty-one".