531342335431 has 4 divisors (see below), whose sum is σ = 542647491552. Its totient is φ = 520037179312.

The previous prime is 531342335401. The next prime is 531342335443. The reversal of 531342335431 is 134533243135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134533243135 = 5 ⋅26906648627.

It is a cyclic number.

It is not a de Polignac number, because 531342335431 - 2²⁵ = 531308780999 is a prime.

It is a super-2 number, since 2×531342335431² (a number of 24 digits) contains 22 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 (531342335401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5652577990 + ... + 5652578083.

It is an arithmetic number, because the mean of its divisors is an integer number (135661872888).

Almost surely, 2^531342335431 is an apocalyptic number.

531342335431 is a deficient number, since it is larger than the sum of its proper divisors (11305156121).

531342335431 is a wasteful number, since it uses less digits than its factorization.

531342335431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11305156120.

The product of its digits is 194400, while the sum is 37.

Adding to 531342335431 its reverse (134533243135), we get a palindrome (665875578566).

The spelling of 531342335431 in words is "five hundred thirty-one billion, three hundred forty-two million, three hundred thirty-five thousand, four hundred thirty-one".