111131012328 has 64 divisors (see below), whose sum is σ = 324272885760. Its totient is φ = 31076147136.

The previous prime is 111131012269. The next prime is 111131012347. The reversal of 111131012328 is 823210131111.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 111131012298 and 111131012307.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7029276 + ... + 7045067.

It is an arithmetic number, because the mean of its divisors is an integer number (5066763840).

Almost surely, 2^111131012328 is an apocalyptic number.

It is an amenable number.

111131012328 is an abundant number, since it is smaller than the sum of its proper divisors (213141873432).

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

111131012328 is a wasteful number, since it uses less digits than its factorization.

111131012328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14074406 (or 14074402 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

Adding to 111131012328 its reverse (823210131111), we get a palindrome (934341143439).

The spelling of 111131012328 in words is "one hundred eleven billion, one hundred thirty-one million, twelve thousand, three hundred twenty-eight".