111520145234 has 8 divisors (see below), whose sum is σ = 168073015728. Its totient is φ = 55495806660.

The previous prime is 111520145183. The next prime is 111520145239. The reversal of 111520145234 is 432541025111.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 111520145197 and 111520145206.

It is not an unprimeable number, because it can be changed into a prime (111520145239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132132452 + ... + 132133295.

It is an arithmetic number, because the mean of its divisors is an integer number (21009126966).

Almost surely, 2^111520145234 is an apocalyptic number.

111520145234 is a deficient number, since it is larger than the sum of its proper divisors (56552870494).

111520145234 is a wasteful number, since it uses less digits than its factorization.

111520145234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264265960.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 111520145234 in words is "one hundred eleven billion, five hundred twenty million, one hundred forty-five thousand, two hundred thirty-four".