321131211323 has 8 divisors (see below), whose sum is σ = 356989535616. Its totient is φ = 286866590400.

The previous prime is 321131211311. The next prime is 321131211367. The reversal of 321131211323 is 323112131123.

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

It is not a de Polignac number, because 321131211323 - 2¹⁰ = 321131210299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321131211223) 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, 398425418 + ... + 398426223.

It is an arithmetic number, because the mean of its divisors is an integer number (44623691952).

Almost surely, 2^321131211323 is an apocalyptic number.

321131211323 is a deficient number, since it is larger than the sum of its proper divisors (35858324293).

321131211323 is a wasteful number, since it uses less digits than its factorization.

321131211323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796851685.

The product of its digits is 648, while the sum is 23.

Adding to 321131211323 its reverse (323112131123), we get a palindrome (644243342446).

The spelling of 321131211323 in words is "three hundred twenty-one billion, one hundred thirty-one million, two hundred eleven thousand, three hundred twenty-three".