111232112131020 has 192 divisors, whose sum is σ = 318222884044800. Its totient is φ = 29024732405760.

The previous prime is 111232112130977. The next prime is 111232112131057. The reversal of 111232112131020 is 20131211232111.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 243308092 + ... + 243764828.

It is an arithmetic number, because the mean of its divisors is an integer number (1657410854400).

Almost surely, 2^{111232112131020} is an apocalyptic number.

111232112131020 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 111232112131020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159111442022400).

111232112131020 is an abundant number, since it is smaller than the sum of its proper divisors (206990771913780).

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

111232112131020 is a wasteful number, since it uses less digits than its factorization.

111232112131020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457288 (or 457286 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 111232112131020 its reverse (20131211232111), we get a palindrome (131363323363131).

The spelling of 111232112131020 in words is "one hundred eleven trillion, two hundred thirty-two billion, one hundred twelve million, one hundred thirty-one thousand, twenty".