512134343234221 has 32 divisors (see below), whose sum is σ = 557711371502208. Its totient is φ = 468394137630720.

The previous prime is 512134343234203. The next prime is 512134343234237. The reversal of 512134343234221 is 122432343431215.

It is a cyclic number.

It is not a de Polignac number, because 512134343234221 - 2³¹ = 512132195750573 is a prime.

It is a super-3 number, since 3×512134343234221³ (a number of 45 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512134343234201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130140535 + ... + 134018011.

It is an arithmetic number, because the mean of its divisors is an integer number (17428480359444).

Almost surely, 2^{512134343234221} is an apocalyptic number.

It is an amenable number.

512134343234221 is a deficient number, since it is larger than the sum of its proper divisors (45577028267987).

512134343234221 is a wasteful number, since it uses less digits than its factorization.

512134343234221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878461.

The product of its digits is 414720, while the sum is 40.

Adding to 512134343234221 its reverse (122432343431215), we get a palindrome (634566686665436).

The spelling of 512134343234221 in words is "five hundred twelve trillion, one hundred thirty-four billion, three hundred forty-three million, two hundred thirty-four thousand, two hundred twenty-one".