212312032 has 24 divisors (see below), whose sum is σ = 423719856. Its totient is φ = 104700672.

The previous prime is 212312029. The next prime is 212312039. The reversal of 212312032 is 230213212.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 212311997 and 212312015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212312039) 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, 43108 + ... + 47779.

It is an arithmetic number, because the mean of its divisors is an integer number (17654994).

Almost surely, 2^212312032 is an apocalyptic number.

It is an amenable number.

212312032 is a deficient number, since it is larger than the sum of its proper divisors (211407824).

212312032 is an equidigital number, since it uses as much as digits as its factorization.

212312032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90970 (or 90962 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212312032 is about 14570.9310615348. The cubic root of 212312032 is about 596.5655937463.

Adding to 212312032 its reverse (230213212), we get a palindrome (442525244).

The spelling of 212312032 in words is "two hundred twelve million, three hundred twelve thousand, thirty-two".