111442243057 has 2 divisors, whose sum is σ = 111442243058. Its totient is φ = 111442243056.

The previous prime is 111442243007. The next prime is 111442243067. The reversal of 111442243057 is 750342244111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107258870016 + 4183373041 = 327504^2 + 64679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111442243057 is a prime.

It is not a weakly prime, because it can be changed into another prime (111442243007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55721121528 + 55721121529.

It is an arithmetic number, because the mean of its divisors is an integer number (55721121529).

Almost surely, 2^111442243057 is an apocalyptic number.

It is an amenable number.

111442243057 is a deficient number, since it is larger than the sum of its proper divisors (1).

111442243057 is an equidigital number, since it uses as much as digits as its factorization.

111442243057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 34.

Adding to 111442243057 its reverse (750342244111), we get a palindrome (861784487168).

The spelling of 111442243057 in words is "one hundred eleven billion, four hundred forty-two million, two hundred forty-three thousand, fifty-seven".