111120672128 has 32 divisors (see below), whose sum is σ = 221413856160. Its totient is φ = 55550135808.

The previous prime is 111120672071. The next prime is 111120672137. The reversal of 111120672128 is 821276021111.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 111120672094 and 111120672103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645950 + ... + 799682.

It is an arithmetic number, because the mean of its divisors is an integer number (6919183005).

Almost surely, 2^111120672128 is an apocalyptic number.

It is an amenable number.

111120672128 is a deficient number, since it is larger than the sum of its proper divisors (110293184032).

111120672128 is an equidigital number, since it uses as much as digits as its factorization.

111120672128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159394 (or 159382 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 32.

Adding to 111120672128 its reverse (821276021111), we get a palindrome (932396693239).

The spelling of 111120672128 in words is "one hundred eleven billion, one hundred twenty million, six hundred seventy-two thousand, one hundred twenty-eight".