111555134345 has 16 divisors (see below), whose sum is σ = 134858207232. Its totient is φ = 88584767040.

The previous prime is 111555134333. The next prime is 111555134357. The reversal of 111555134345 is 543431555111.

It is an interprime number because it is at equal distance from previous prime (111555134333) and next prime (111555134357).

It is not a de Polignac number, because 111555134345 - 2¹⁰ = 111555133321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111555134299 and 111555134308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316019 + ... + 568311.

It is an arithmetic number, because the mean of its divisors is an integer number (8428637952).

Almost surely, 2^111555134345 is an apocalyptic number.

It is an amenable number.

111555134345 is a deficient number, since it is larger than the sum of its proper divisors (23303072887).

111555134345 is a wasteful number, since it uses less digits than its factorization.

111555134345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252952.

The product of its digits is 90000, while the sum is 38.

Adding to 111555134345 its reverse (543431555111), we get a palindrome (654986689456).

The spelling of 111555134345 in words is "one hundred eleven billion, five hundred fifty-five million, one hundred thirty-four thousand, three hundred forty-five".