331112 has 8 divisors (see below), whose sum is σ = 620850. Its totient is φ = 165552.

The previous prime is 331099. The next prime is 331127. The reversal of 331112 is 211133.

It can be written as a sum of positive squares in only one way, i.e., 256036 + 75076 = 506^2 + 274^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 331093 and 331102.

It is an unprimeable number.

331112 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20687 + ... + 20702.

2³³¹¹¹² is an apocalyptic number.

It is an amenable number.

331112 is a deficient number, since it is larger than the sum of its proper divisors (289738).

331112 is a wasteful number, since it uses less digits than its factorization.

331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41395 (or 41391 counting only the distinct ones).

The product of its digits is 18, while the sum is 11.

The square root of 331112 is about 575.4233224331. The cubic root of 331112 is about 69.1817653849.

Adding to 331112 its reverse (211133), we get a palindrome (542245).

The spelling of 331112 in words is "three hundred thirty-one thousand, one hundred twelve".