1112444455691 has 2 divisors, whose sum is σ = 1112444455692. Its totient is φ = 1112444455690.

The previous prime is 1112444455663. The next prime is 1112444455693. The reversal of 1112444455691 is 1965544442111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1112444455691 is a prime.

Together with 1112444455693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1112444455693) 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, 556222227845 + 556222227846.

It is an arithmetic number, because the mean of its divisors is an integer number (556222227846).

Almost surely, 2^{1112444455691} is an apocalyptic number.

1112444455691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112444455691 is an equidigital number, since it uses as much as digits as its factorization.

1112444455691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691200, while the sum is 47.

The spelling of 1112444455691 in words is "one trillion, one hundred twelve billion, four hundred forty-four million, four hundred fifty-five thousand, six hundred ninety-one".