212313424 has 10 divisors (see below), whose sum is σ = 411357290. Its totient is φ = 106156704.

The previous prime is 212313383. The next prime is 212313433. The reversal of 212313424 is 424313212.

It can be written as a sum of positive squares in only one way, i.e., 181710400 + 30603024 = 13480^2 + 5532^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212313395 and 212313404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6634779 + ... + 6634810.

It is an arithmetic number, because the mean of its divisors is an integer number (41135729).

Almost surely, 2^212313424 is an apocalyptic number.

It is an amenable number.

212313424 is a deficient number, since it is larger than the sum of its proper divisors (199043866).

212313424 is a wasteful number, since it uses less digits than its factorization.

212313424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13269597 (or 13269591 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 212313424 is about 14570.9788277933. The cubic root of 212313424 is about 596.5668975152.

Adding to 212313424 its reverse (424313212), we get a palindrome (636626636).

The spelling of 212313424 in words is "two hundred twelve million, three hundred thirteen thousand, four hundred twenty-four".