212831032 has 16 divisors (see below), whose sum is σ = 399293640. Its totient is φ = 106352736.

The previous prime is 212831009. The next prime is 212831033. The reversal of 212831032 is 230138212.

It is a junction number, because it is equal to n+sod(n) for n = 212830994 and 212831012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212831033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8583 + ... + 22345.

Almost surely, 2^212831032 is an apocalyptic number.

It is an amenable number.

212831032 is a deficient number, since it is larger than the sum of its proper divisors (186462608).

212831032 is a wasteful number, since it uses less digits than its factorization.

212831032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15702 (or 15698 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 212831032 is about 14588.7296225545. The cubic root of 212831032 is about 597.0513027505.

Adding to 212831032 its reverse (230138212), we get a palindrome (442969244).

The spelling of 212831032 in words is "two hundred twelve million, eight hundred thirty-one thousand, thirty-two".