111402312 has 64 divisors (see below), whose sum is σ = 320215680. Its totient is φ = 31636992.

The previous prime is 111402299. The next prime is 111402349. The reversal of 111402312 is 213204111.

It is a junction number, because it is equal to n+sod(n) for n = 111402291 and 111402300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27148 + ... + 30980.

It is an arithmetic number, because the mean of its divisors is an integer number (5003370).

Almost surely, 2^111402312 is an apocalyptic number.

111402312 is a gapful number since it is divisible by the number (12) 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 111402312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160107840).

111402312 is an abundant number, since it is smaller than the sum of its proper divisors (208813368).

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

111402312 is a wasteful number, since it uses less digits than its factorization.

111402312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022 (or 4018 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 111402312 is about 10554.7293664973. The cubic root of 111402312 is about 481.1694747598.

Adding to 111402312 its reverse (213204111), we get a palindrome (324606423).

The spelling of 111402312 in words is "one hundred eleven million, four hundred two thousand, three hundred twelve".