212312312 has 16 divisors (see below), whose sum is σ = 399827400. Its totient is φ = 105691680.

The previous prime is 212312299. The next prime is 212312341. The reversal of 212312312 is 213213212.

212312312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56114 + ... + 59777.

Almost surely, 2^212312312 is an apocalyptic number.

It is an amenable number.

212312312 is a deficient number, since it is larger than the sum of its proper divisors (187515088).

212312312 is a wasteful number, since it uses less digits than its factorization.

212312312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116126 (or 116122 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 212312312 is about 14570.9406697028. The cubic root of 212312312 is about 596.5658559991.

Adding to 212312312 its reverse (213213212), we get a palindrome (425525524).

The spelling of 212312312 in words is "two hundred twelve million, three hundred twelve thousand, three hundred twelve".