231112228 has 6 divisors (see below), whose sum is σ = 404446406. Its totient is φ = 115556112.

The previous prime is 231112213. The next prime is 231112237. The reversal of 231112228 is 822211132.

It can be written as a sum of positive squares in only one way, i.e., 188183524 + 42928704 = 13718^2 + 6552^2 .

It is a super-2 number, since 2×231112228² = 106825723862247968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231112199 and 231112208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28889025 + ... + 28889032.

Almost surely, 2^231112228 is an apocalyptic number.

It is an amenable number.

231112228 is a deficient number, since it is larger than the sum of its proper divisors (173334178).

231112228 is a wasteful number, since it uses less digits than its factorization.

231112228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57778061 (or 57778059 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 231112228 is about 15202.3757353908. The cubic root of 231112228 is about 613.6785940711.

The spelling of 231112228 in words is "two hundred thirty-one million, one hundred twelve thousand, two hundred twenty-eight".