213230012 has 24 divisors (see below), whose sum is σ = 388750320. Its totient is φ = 102247040.

The previous prime is 213230009. The next prime is 213230041. The reversal of 213230012 is 210032312.

It is a happy number.

It is a congruent number.

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, 1343 + ... + 20694.

It is an arithmetic number, because the mean of its divisors is an integer number (16197930).

Almost surely, 2^213230012 is an apocalyptic number.

It is an amenable number.

213230012 is a deficient number, since it is larger than the sum of its proper divisors (175520308).

213230012 is a wasteful number, since it uses less digits than its factorization.

213230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22141 (or 22139 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 213230012 is about 14602.3974743876. The cubic root of 213230012 is about 597.4241538151.

Adding to 213230012 its reverse (210032312), we get a palindrome (423262324).

It can be divided in two parts, 2132300 and 12, that added together give a palindrome (2132312).

The spelling of 213230012 in words is "two hundred thirteen million, two hundred thirty thousand, twelve".