111312131232 has 48 divisors (see below), whose sum is σ = 294129444672. Its totient is φ = 36858316800.

The previous prime is 111312131221. The next prime is 111312131243. The reversal of 111312131232 is 232131213111.

It is an interprime number because it is at equal distance from previous prime (111312131221) and next prime (111312131243).

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 111312131199 and 111312131208.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3824913 + ... + 3853904.

It is an arithmetic number, because the mean of its divisors is an integer number (6127696764).

Almost surely, 2^111312131232 is an apocalyptic number.

111312131232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111312131232 is an abundant number, since it is smaller than the sum of its proper divisors (182817313440).

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

111312131232 is a wasteful number, since it uses less digits than its factorization.

111312131232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7678981 (or 7678973 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

Adding to 111312131232 its reverse (232131213111), we get a palindrome (343443344343).

The spelling of 111312131232 in words is "one hundred eleven billion, three hundred twelve million, one hundred thirty-one thousand, two hundred thirty-two".