531321313411 has 4 divisors (see below), whose sum is σ = 607224358192. Its totient is φ = 455418268632.

The previous prime is 531321313379. The next prime is 531321313421. The reversal of 531321313411 is 114313123135.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531321313411 - 2⁵ = 531321313379 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 531321313411.

It is not an unprimeable number, because it can be changed into a prime (531321313421) 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 3 ways as a sum of consecutive naturals, for example, 37951522380 + ... + 37951522393.

It is an arithmetic number, because the mean of its divisors is an integer number (151806089548).

Almost surely, 2^531321313411 is an apocalyptic number.

531321313411 is a deficient number, since it is larger than the sum of its proper divisors (75903044781).

531321313411 is an equidigital number, since it uses as much as digits as its factorization.

531321313411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75903044780.

The product of its digits is 3240, while the sum is 28.

Adding to 531321313411 its reverse (114313123135), we get a palindrome (645634436546).

The spelling of 531321313411 in words is "five hundred thirty-one billion, three hundred twenty-one million, three hundred thirteen thousand, four hundred eleven".