212313123312 has 40 divisors (see below), whose sum is σ = 560145267456. Its totient is φ = 69265273536.

The previous prime is 212313123289. The next prime is 212313123313. The reversal of 212313123312 is 213321313212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212313123313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47052958 + ... + 47057469.

Almost surely, 2^212313123312 is an apocalyptic number.

It is an amenable number.

212313123312 is an abundant number, since it is smaller than the sum of its proper divisors (347832144144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212313123312 is a wasteful number, since it uses less digits than its factorization.

212313123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94110485 (or 94110479 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

Adding to 212313123312 its reverse (213321313212), we get a palindrome (425634436524).

The spelling of 212313123312 in words is "two hundred twelve billion, three hundred thirteen million, one hundred twenty-three thousand, three hundred twelve".