111234120030 has 96 divisors (see below), whose sum is σ = 332105754240. Its totient is φ = 25546587840.

The previous prime is 111234120017. The next prime is 111234120073. The reversal of 111234120030 is 30021432111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111234119985 and 111234120012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2937972 + ... + 2975591.

It is an arithmetic number, because the mean of its divisors is an integer number (3459434940).

Almost surely, 2^111234120030 is an apocalyptic number.

111234120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111234120030 is an abundant number, since it is smaller than the sum of its proper divisors (220871634210).

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

111234120030 is a wasteful number, since it uses less digits than its factorization.

111234120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5913606 (or 5913603 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 111234120030 its reverse (30021432111), we get a palindrome (141255552141).

The spelling of 111234120030 in words is "one hundred eleven billion, two hundred thirty-four million, one hundred twenty thousand, thirty".