321131534223 has 16 divisors (see below), whose sum is σ = 430167529440. Its totient is φ = 213093873024.

The previous prime is 321131534221. The next prime is 321131534263. The reversal of 321131534223 is 322435131123.

It is not a de Polignac number, because 321131534223 - 2¹ = 321131534221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321131534221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287665 + ... + 851477.

It is an arithmetic number, because the mean of its divisors is an integer number (26885470590).

Almost surely, 2^321131534223 is an apocalyptic number.

321131534223 is a deficient number, since it is larger than the sum of its proper divisors (109035995217).

321131534223 is a wasteful number, since it uses less digits than its factorization.

321131534223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564698.

The product of its digits is 12960, while the sum is 30.

Adding to 321131534223 its reverse (322435131123), we get a palindrome (643566665346).

The spelling of 321131534223 in words is "three hundred twenty-one billion, one hundred thirty-one million, five hundred thirty-four thousand, two hundred twenty-three".