111320210142 has 80 divisors (see below), whose sum is σ = 252544327200. Its totient is φ = 36645903360.

The previous prime is 111320210129. The next prime is 111320210149. The reversal of 111320210142 is 241012023111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111320210149) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 13390167 + ... + 13398477.

It is an arithmetic number, because the mean of its divisors is an integer number (3156804090).

Almost surely, 2^111320210142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111320210142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126272163600).

111320210142 is an abundant number, since it is smaller than the sum of its proper divisors (141224117058).

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

111320210142 is an equidigital number, since it uses as much as digits as its factorization.

111320210142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9343 (or 9334 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111320210142 its reverse (241012023111), we get a palindrome (352332233253).

The spelling of 111320210142 in words is "one hundred eleven billion, three hundred twenty million, two hundred ten thousand, one hundred forty-two".