217350423124 has 12 divisors (see below), whose sum is σ = 381512376448. Its totient is φ = 108346887000.

The previous prime is 217350423079. The next prime is 217350423137. The reversal of 217350423124 is 421324053712.

It is a self number, because there is not a number n which added to its sum of digits gives 217350423124.

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, 82079652 + ... + 82082299.

Almost surely, 2^217350423124 is an apocalyptic number.

It is an amenable number.

217350423124 is a deficient number, since it is larger than the sum of its proper divisors (164161953324).

217350423124 is a wasteful number, since it uses less digits than its factorization.

217350423124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164162286 (or 164162284 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

Adding to 217350423124 its reverse (421324053712), we get a palindrome (638674476836).

The spelling of 217350423124 in words is "two hundred seventeen billion, three hundred fifty million, four hundred twenty-three thousand, one hundred twenty-four".