111540341123 has 4 divisors (see below), whose sum is σ = 111934476888. Its totient is φ = 111146205360.

The previous prime is 111540341119. The next prime is 111540341131. The reversal of 111540341123 is 321143045111.

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

It is a cyclic number.

It is not a de Polignac number, because 111540341123 - 2² = 111540341119 is a prime.

It is a super-2 number, since 2×111540341123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111540341092 and 111540341101.

It is not an unprimeable number, because it can be changed into a prime (111540341153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197067458 + ... + 197068023.

It is an arithmetic number, because the mean of its divisors is an integer number (27983619222).

Almost surely, 2^111540341123 is an apocalyptic number.

111540341123 is a deficient number, since it is larger than the sum of its proper divisors (394135765).

111540341123 is an equidigital number, since it uses as much as digits as its factorization.

111540341123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394135764.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 111540341123 its reverse (321143045111), we get a palindrome (432683386234).

The spelling of 111540341123 in words is "one hundred eleven billion, five hundred forty million, three hundred forty-one thousand, one hundred twenty-three".