212340023312 has 10 divisors (see below), whose sum is σ = 411408795198. Its totient is φ = 106170011648.

The previous prime is 212340023309. The next prime is 212340023317. The reversal of 212340023312 is 213320043212.

It can be written as a sum of positive squares in only one way, i.e., 188856299776 + 23483723536 = 434576^2 + 153244^2 .

It is not an unprimeable number, because it can be changed into a prime (212340023317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6635625713 + ... + 6635625744.

Almost surely, 2^212340023312 is an apocalyptic number.

It is an amenable number.

212340023312 is a deficient number, since it is larger than the sum of its proper divisors (199068771886).

212340023312 is a wasteful number, since it uses less digits than its factorization.

212340023312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13271251465 (or 13271251459 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 212340023312 its reverse (213320043212), we get a palindrome (425660066524).

The spelling of 212340023312 in words is "two hundred twelve billion, three hundred forty million, twenty-three thousand, three hundred twelve".