138227111115 has 32 divisors (see below), whose sum is σ = 224907128832. Its totient is φ = 72474480000.

The previous prime is 138227111107. The next prime is 138227111171. The reversal of 138227111115 is 511111722831.

138227111115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138227111115 - 2³ = 138227111107 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1746450 + ... + 1823880.

It is an arithmetic number, because the mean of its divisors is an integer number (7028347776).

Almost surely, 2^138227111115 is an apocalyptic number.

138227111115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138227111115 is a deficient number, since it is larger than the sum of its proper divisors (86680017717).

138227111115 is a wasteful number, since it uses less digits than its factorization.

138227111115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79451.

The product of its digits is 3360, while the sum is 33.

Adding to 138227111115 its reverse (511111722831), we get a palindrome (649338833946).

The spelling of 138227111115 in words is "one hundred thirty-eight billion, two hundred twenty-seven million, one hundred eleven thousand, one hundred fifteen".