531405324311 has 8 divisors (see below), whose sum is σ = 544450567248. Its totient is φ = 518364088000.

The previous prime is 531405324271. The next prime is 531405324319. The reversal of 531405324311 is 113423504135.

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 531405324311 - 2¹⁰ = 531405323287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531405324319) 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, 732260 + ... + 1264521.

It is an arithmetic number, because the mean of its divisors is an integer number (68056320906).

Almost surely, 2^531405324311 is an apocalyptic number.

531405324311 is a deficient number, since it is larger than the sum of its proper divisors (13045242937).

531405324311 is a wasteful number, since it uses less digits than its factorization.

531405324311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003313.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 531405324311 its reverse (113423504135), we get a palindrome (644828828446).

The spelling of 531405324311 in words is "five hundred thirty-one billion, four hundred five million, three hundred twenty-four thousand, three hundred eleven".