213420655244 has 12 divisors (see below), whose sum is σ = 373570163904. Its totient is φ = 106686322704.

The previous prime is 213420655211. The next prime is 213420655361. The reversal of 213420655244 is 442556024312.

It is a junction number, because it is equal to n+sod(n) for n = 213420655198 and 213420655207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5981219 + ... + 6016794.

It is an arithmetic number, because the mean of its divisors is an integer number (31130846992).

Almost surely, 2^213420655244 is an apocalyptic number.

It is an amenable number.

213420655244 is a deficient number, since it is larger than the sum of its proper divisors (160149508660).

213420655244 is a wasteful number, since it uses less digits than its factorization.

213420655244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12002464 (or 12002462 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 38.

Adding to 213420655244 its reverse (442556024312), we get a palindrome (655976679556).

The spelling of 213420655244 in words is "two hundred thirteen billion, four hundred twenty million, six hundred fifty-five thousand, two hundred forty-four".