231032112 has 40 divisors (see below), whose sum is σ = 598039104. Its totient is φ = 76855104.

The previous prime is 231032101. The next prime is 231032161. The reversal of 231032112 is 211230132.

It is a junction number, because it is equal to n+sod(n) for n = 231032091 and 231032100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20503 + ... + 29705.

Almost surely, 2^231032112 is an apocalyptic number.

It is an amenable number.

231032112 is an abundant number, since it is smaller than the sum of its proper divisors (367006992).

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

231032112 is a wasteful number, since it uses less digits than its factorization.

231032112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9737 (or 9731 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 231032112 is about 15199.7405241011. The cubic root of 231032112 is about 613.6076744767.

Adding to 231032112 its reverse (211230132), we get a palindrome (442262244).

The spelling of 231032112 in words is "two hundred thirty-one million, thirty-two thousand, one hundred twelve".