531331431223 has 4 divisors (see below), whose sum is σ = 539261751160. Its totient is φ = 523401111288.

The previous prime is 531331431193. The next prime is 531331431251. The reversal of 531331431223 is 322134133135.

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 531331431223 - 2⁹ = 531331430711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531331431263) 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, 3965159868 + ... + 3965160001.

It is an arithmetic number, because the mean of its divisors is an integer number (134815437790).

Almost surely, 2^531331431223 is an apocalyptic number.

531331431223 is a deficient number, since it is larger than the sum of its proper divisors (7930319937).

531331431223 is an equidigital number, since it uses as much as digits as its factorization.

531331431223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930319936.

The product of its digits is 19440, while the sum is 31.

Adding to 531331431223 its reverse (322134133135), we get a palindrome (853465564358).

The spelling of 531331431223 in words is "five hundred thirty-one billion, three hundred thirty-one million, four hundred thirty-one thousand, two hundred twenty-three".