111523040553 has 8 divisors (see below), whose sum is σ = 150488922528. Its totient is φ = 73452926144.

The previous prime is 111523040521. The next prime is 111523040599. The reversal of 111523040553 is 355040325111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111523040553 - 2⁵ = 111523040521 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 111523040553.

It is not an unprimeable number, because it can be changed into a prime (111523040353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223941600 + ... + 223942097.

It is an arithmetic number, because the mean of its divisors is an integer number (18811115316).

Almost surely, 2^111523040553 is an apocalyptic number.

It is an amenable number.

111523040553 is a deficient number, since it is larger than the sum of its proper divisors (38965881975).

111523040553 is an equidigital number, since it uses as much as digits as its factorization.

111523040553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447883783.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 111523040553 its reverse (355040325111), we get a palindrome (466563365664).

The spelling of 111523040553 in words is "one hundred eleven billion, five hundred twenty-three million, forty thousand, five hundred fifty-three".