111213030120 has 64 divisors (see below), whose sum is σ = 334225656000. Its totient is φ = 29604668928.

The previous prime is 111213030077. The next prime is 111213030121. The reversal of 111213030120 is 21030312111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111213030120.

It is not an unprimeable number, because it can be changed into a prime (111213030121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746110 + ... + 882669.

It is an arithmetic number, because the mean of its divisors is an integer number (5222275875).

Almost surely, 2^111213030120 is an apocalyptic number.

111213030120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111213030120 is an abundant number, since it is smaller than the sum of its proper divisors (223012625880).

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

111213030120 is a wasteful number, since it uses less digits than its factorization.

111213030120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629362 (or 1629358 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111213030120 its reverse (21030312111), we get a palindrome (132243342231).

The spelling of 111213030120 in words is "one hundred eleven billion, two hundred thirteen million, thirty thousand, one hundred twenty".