111120155046 has 160 divisors (see below), whose sum is σ = 259528389120. Its totient is φ = 35510270400.

The previous prime is 111120155017. The next prime is 111120155051. The reversal of 111120155046 is 640551021111.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 194605941 + ... + 194606511.

It is an arithmetic number, because the mean of its divisors is an integer number (1622052432).

Almost surely, 2^111120155046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111120155046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129764194560).

111120155046 is an abundant number, since it is smaller than the sum of its proper divisors (148408234074).

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

111120155046 is a wasteful number, since it uses less digits than its factorization.

111120155046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1103 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

Adding to 111120155046 its reverse (640551021111), we get a palindrome (751671176157).

The spelling of 111120155046 in words is "one hundred eleven billion, one hundred twenty million, one hundred fifty-five thousand, forty-six".