531362321521223 has 4 divisors (see below), whose sum is σ = 531417322288728. Its totient is φ = 531307320753720.

The previous prime is 531362321521153. The next prime is 531362321521231. The reversal of 531362321521223 is 322125123263135.

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 531362321521223 - 2²⁸ = 531362053085767 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 (531362321521243) 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, 27500369261 + ... + 27500388582.

It is an arithmetic number, because the mean of its divisors is an integer number (132854330572182).

Almost surely, 2^{531362321521223} is an apocalyptic number.

531362321521223 is a deficient number, since it is larger than the sum of its proper divisors (55000767505).

531362321521223 is an equidigital number, since it uses as much as digits as its factorization.

531362321521223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55000767504.

The product of its digits is 388800, while the sum is 41.

Adding to 531362321521223 its reverse (322125123263135), we get a palindrome (853487444784358).

The spelling of 531362321521223 in words is "five hundred thirty-one trillion, three hundred sixty-two billion, three hundred twenty-one million, five hundred twenty-one thousand, two hundred twenty-three".