111540123204 has 12 divisors (see below), whose sum is σ = 260260287504. Its totient is φ = 37180041064.

The previous prime is 111540123193. The next prime is 111540123293. The reversal of 111540123204 is 402321045111.

It is a tau number, because it is divible by the number of its divisors (12).

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 in 3 ways as a sum of consecutive naturals, for example, 4647505122 + ... + 4647505145.

It is an arithmetic number, because the mean of its divisors is an integer number (21688357292).

Almost surely, 2^111540123204 is an apocalyptic number.

It is an amenable number.

111540123204 is an abundant number, since it is smaller than the sum of its proper divisors (148720164300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111540123204 is a wasteful number, since it uses less digits than its factorization.

111540123204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9295010274 (or 9295010272 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 111540123204 its reverse (402321045111), we get a palindrome (513861168315).

The spelling of 111540123204 in words is "one hundred eleven billion, five hundred forty million, one hundred twenty-three thousand, two hundred four".