321311111023 has 8 divisors (see below), whose sum is σ = 367219032192. Its totient is φ = 275404773336.

The previous prime is 321311111021. The next prime is 321311111041. The reversal of 321311111023 is 320111113123.

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

It is not a de Polignac number, because 321311111023 - 2¹ = 321311111021 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 (321311111021) 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, 76536 + ... + 805282.

It is an arithmetic number, because the mean of its divisors is an integer number (45902379024).

Almost surely, 2^321311111023 is an apocalyptic number.

321311111023 is a deficient number, since it is larger than the sum of its proper divisors (45907921169).

321311111023 is an equidigital number, since it uses as much as digits as its factorization.

321311111023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791741.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 321311111023 its reverse (320111113123), we get a palindrome (641422224146).

The spelling of 321311111023 in words is "three hundred twenty-one billion, three hundred eleven million, one hundred eleven thousand, twenty-three".