111520544252 has 12 divisors (see below), whose sum is σ = 210173333496. Its totient is φ = 51471020400.

The previous prime is 111520544189. The next prime is 111520544257. The reversal of 111520544252 is 252445025111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111520544257) 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, 1072312874 + ... + 1072312977.

It is an arithmetic number, because the mean of its divisors is an integer number (17514444458).

Almost surely, 2^111520544252 is an apocalyptic number.

It is an amenable number.

111520544252 is a deficient number, since it is larger than the sum of its proper divisors (98652789244).

111520544252 is a wasteful number, since it uses less digits than its factorization.

111520544252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144625868 (or 2144625866 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 111520544252 its reverse (252445025111), we get a palindrome (363965569363).

The spelling of 111520544252 in words is "one hundred eleven billion, five hundred twenty million, five hundred forty-four thousand, two hundred fifty-two".