111310321111440 has 160 divisors (see below), whose sum is σ = 376474618368000. Its totient is φ = 26981212700160.

The previous prime is 111310321111397. The next prime is 111310321111459. The reversal of 111310321111440 is 44111123013111.

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

It is a self number, because there is not a number n which added to its sum of digits gives 111310321111440.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20541921 + ... + 25388799.

It is an arithmetic number, because the mean of its divisors is an integer number (2352966364800).

Almost surely, 2^{111310321111440} is an apocalyptic number.

111310321111440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111310321111440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188237309184000).

111310321111440 is an abundant number, since it is smaller than the sum of its proper divisors (265164297256560).

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

111310321111440 is a wasteful number, since it uses less digits than its factorization.

111310321111440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855605 (or 4855599 counting only the distinct ones).

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

Adding to 111310321111440 its reverse (44111123013111), we get a palindrome (155421444124551).

The spelling of 111310321111440 in words is "one hundred eleven trillion, three hundred ten billion, three hundred twenty-one million, one hundred eleven thousand, four hundred forty".