138104397311 has 4 divisors (see below), whose sum is σ = 138129480792. Its totient is φ = 138079313832.

The previous prime is 138104397259. The next prime is 138104397317. The reversal of 138104397311 is 113793401831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138104397311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138104397317) 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 in 3 ways as a sum of consecutive naturals, for example, 12533480 + ... + 12544493.

It is an arithmetic number, because the mean of its divisors is an integer number (34532370198).

Almost surely, 2^138104397311 is an apocalyptic number.

138104397311 is a deficient number, since it is larger than the sum of its proper divisors (25083481).

138104397311 is an equidigital number, since it uses as much as digits as its factorization.

138104397311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25083480.

The product of its (nonzero) digits is 54432, while the sum is 41.

The spelling of 138104397311 in words is "one hundred thirty-eight billion, one hundred four million, three hundred ninety-seven thousand, three hundred eleven".