111345543111 has 32 divisors (see below), whose sum is σ = 166754078208. Its totient is φ = 65492634240.

The previous prime is 111345543097. The next prime is 111345543121.

111345543111 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 111345543111 - 2⁹ = 111345542599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111345543121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369886 + ... + 599588.

It is an arithmetic number, because the mean of its divisors is an integer number (5211064944).

Almost surely, 2^111345543111 is an apocalyptic number.

111345543111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111345543111 is a deficient number, since it is larger than the sum of its proper divisors (55408535097).

111345543111 is a wasteful number, since it uses less digits than its factorization.

111345543111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230151.

The product of its digits is 3600, while the sum is 30.

It can be divided in two parts, 111345 and 543111, that added together give a palindrome (654456).

The spelling of 111345543111 in words is "one hundred eleven billion, three hundred forty-five million, five hundred forty-three thousand, one hundred eleven".