521214430411 has 8 divisors (see below), whose sum is σ = 523185193584. Its totient is φ = 519244308960.

The previous prime is 521214430369. The next prime is 521214430441. The reversal of 521214430411 is 114034412125.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 521214430411 - 2²¹ = 521212333259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 521214430411.

It is not an unprimeable number, because it can be changed into a prime (521214430441) 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, 1499436 + ... + 1814038.

It is an arithmetic number, because the mean of its divisors is an integer number (65398149198).

Almost surely, 2^521214430411 is an apocalyptic number.

521214430411 is a deficient number, since it is larger than the sum of its proper divisors (1970763173).

521214430411 is a wasteful number, since it uses less digits than its factorization.

521214430411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320861.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 521214430411 its reverse (114034412125), we get a palindrome (635248842536).

The spelling of 521214430411 in words is "five hundred twenty-one billion, two hundred fourteen million, four hundred thirty thousand, four hundred eleven".