531343022311 has 8 divisors (see below), whose sum is σ = 532914940800. Its totient is φ = 529771614840.

The previous prime is 531343022281. The next prime is 531343022323. The reversal of 531343022311 is 113220343135.

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 531343022311 - 2²⁷ = 531208804583 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 531343022311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531343022381) 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, 2007496 + ... + 2256706.

It is an arithmetic number, because the mean of its divisors is an integer number (66614367600).

Almost surely, 2^531343022311 is an apocalyptic number.

531343022311 is a deficient number, since it is larger than the sum of its proper divisors (1571918489).

531343022311 is a wasteful number, since it uses less digits than its factorization.

531343022311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255509.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 531343022311 its reverse (113220343135), we get a palindrome (644563365446).

The spelling of 531343022311 in words is "five hundred thirty-one billion, three hundred forty-three million, twenty-two thousand, three hundred eleven".