321131433223 has 4 divisors (see below), whose sum is σ = 321159376480. Its totient is φ = 321103489968.

The previous prime is 321131433211. The next prime is 321131433247. The reversal of 321131433223 is 322334131123.

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 321131433223 - 2⁵ = 321131433191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321131433191 and 321131433200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321131433263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13954383 + ... + 13977376.

It is an arithmetic number, because the mean of its divisors is an integer number (80289844120).

Almost surely, 2^321131433223 is an apocalyptic number.

321131433223 is a deficient number, since it is larger than the sum of its proper divisors (27943257).

321131433223 is a wasteful number, since it uses less digits than its factorization.

321131433223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27943256.

The product of its digits is 7776, while the sum is 28.

Adding to 321131433223 its reverse (322334131123), we get a palindrome (643465564346).

The spelling of 321131433223 in words is "three hundred twenty-one billion, one hundred thirty-one million, four hundred thirty-three thousand, two hundred twenty-three".