111930337138 has 4 divisors (see below), whose sum is σ = 167895505710. Its totient is φ = 55965168568.

The previous prime is 111930337073. The next prime is 111930337151. The reversal of 111930337138 is 831733039111.

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., 111631496769 + 298840369 = 334113^2 + 17287^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111930337138.

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 as a sum of consecutive naturals, namely, 27982584283 + ... + 27982584286.

Almost surely, 2^111930337138 is an apocalyptic number.

111930337138 is a deficient number, since it is larger than the sum of its proper divisors (55965168572).

111930337138 is an equidigital number, since it uses as much as digits as its factorization.

111930337138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55965168571.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 111930337138 in words is "one hundred eleven billion, nine hundred thirty million, three hundred thirty-seven thousand, one hundred thirty-eight".