321223121331 has 8 divisors (see below), whose sum is σ = 489482851584. Its totient is φ = 183556069320.

The previous prime is 321223121327. The next prime is 321223121333. The reversal of 321223121331 is 133121322123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 321223121331 - 2² = 321223121327 is a prime.

It is a super-2 number, since 2×321223121331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (321223121333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7648169535 + ... + 7648169576.

It is an arithmetic number, because the mean of its divisors is an integer number (61185356448).

Almost surely, 2^321223121331 is an apocalyptic number.

321223121331 is a deficient number, since it is larger than the sum of its proper divisors (168259730253).

321223121331 is a wasteful number, since it uses less digits than its factorization.

321223121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15296339121.

The product of its digits is 1296, while the sum is 24.

Adding to 321223121331 its reverse (133121322123), we get a palindrome (454344443454).

The spelling of 321223121331 in words is "three hundred twenty-one billion, two hundred twenty-three million, one hundred twenty-one thousand, three hundred thirty-one".