111834352138 has 4 divisors (see below), whose sum is σ = 167751528210. Its totient is φ = 55917176068.

The previous prime is 111834352129. The next prime is 111834352153. The reversal of 111834352138 is 831253438111.

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

It can be written as a sum of positive squares in only one way, i.e., 82192876249 + 29641475889 = 286693^2 + 172167^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111834352138.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27958588033 + ... + 27958588036.

Almost surely, 2^111834352138 is an apocalyptic number.

111834352138 is a deficient number, since it is larger than the sum of its proper divisors (55917176072).

111834352138 is an equidigital number, since it uses as much as digits as its factorization.

111834352138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55917176071.

The product of its digits is 69120, while the sum is 40.

The spelling of 111834352138 in words is "one hundred eleven billion, eight hundred thirty-four million, three hundred fifty-two thousand, one hundred thirty-eight".