111232312120 has 32 divisors (see below), whose sum is σ = 250753119120. Its totient is φ = 44407517440.

The previous prime is 111232312117. The next prime is 111232312171. The reversal of 111232312120 is 21213232111.

It is a super-2 number, since 2×111232312120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2647882 + ... + 2689561.

Almost surely, 2^111232312120 is an apocalyptic number.

111232312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111232312120 is an abundant number, since it is smaller than the sum of its proper divisors (139520807000).

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

111232312120 is a wasteful number, since it uses less digits than its factorization.

111232312120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5337975 (or 5337971 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111232312120 its reverse (21213232111), we get a palindrome (132445544231).

The spelling of 111232312120 in words is "one hundred eleven billion, two hundred thirty-two million, three hundred twelve thousand, one hundred twenty".