188044142113 has 2 divisors, whose sum is σ = 188044142114. Its totient is φ = 188044142112.

The previous prime is 188044142029. The next prime is 188044142171. The reversal of 188044142113 is 311241440881.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157301078544 + 30743063569 = 396612^2 + 175337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188044142113 is a prime.

It is not a weakly prime, because it can be changed into another prime (188044142173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94022071056 + 94022071057.

It is an arithmetic number, because the mean of its divisors is an integer number (94022071057).

Almost surely, 2^188044142113 is an apocalyptic number.

It is an amenable number.

188044142113 is a deficient number, since it is larger than the sum of its proper divisors (1).

188044142113 is an equidigital number, since it uses as much as digits as its factorization.

188044142113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 37.

Adding to 188044142113 its reverse (311241440881), we get a palindrome (499285582994).

The spelling of 188044142113 in words is "one hundred eighty-eight billion, forty-four million, one hundred forty-two thousand, one hundred thirteen".