127106731105 has 4 divisors (see below), whose sum is σ = 152528077332. Its totient is φ = 101685384880.

The previous prime is 127106731057. The next prime is 127106731159. The reversal of 127106731105 is 501137601721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501137601721 = 487 ⋅1029029983.

It can be written as a sum of positive squares in 2 ways, for example, as 48428164096 + 78678567009 = 220064^2 + 280497^2 .

It is not a de Polignac number, because 127106731105 - 2⁷ = 127106730977 is a prime.

It is a super-2 number, since 2×127106731105² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 12710673106 + ... + 12710673115.

It is an arithmetic number, because the mean of its divisors is an integer number (38132019333).

Almost surely, 2^127106731105 is an apocalyptic number.

It is an amenable number.

127106731105 is a deficient number, since it is larger than the sum of its proper divisors (25421346227).

127106731105 is an equidigital number, since it uses as much as digits as its factorization.

127106731105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25421346226.

The product of its (nonzero) digits is 8820, while the sum is 34.

The spelling of 127106731105 in words is "one hundred twenty-seven billion, one hundred six million, seven hundred thirty-one thousand, one hundred five".