111028834518 has 32 divisors (see below), whose sum is σ = 258959385600. Its totient is φ = 31722523560.

The previous prime is 111028834489. The next prime is 111028834523. The reversal of 111028834518 is 815438820111.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 111028834518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26972878 + ... + 26976993.

It is an arithmetic number, because the mean of its divisors is an integer number (8092480800).

Almost surely, 2^111028834518 is an apocalyptic number.

111028834518 is an abundant number, since it is smaller than the sum of its proper divisors (147930551082).

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

111028834518 is an equidigital number, since it uses as much as digits as its factorization.

111028834518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53949897 (or 53949883 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 42.

The spelling of 111028834518 in words is "one hundred eleven billion, twenty-eight million, eight hundred thirty-four thousand, five hundred eighteen".