321111311351 has 8 divisors (see below), whose sum is σ = 328552254864. Its totient is φ = 313752588480.

The previous prime is 321111311321. The next prime is 321111311359. The reversal of 321111311351 is 153113111123.

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

It is a cyclic number.

It is not a de Polignac number, because 321111311351 - 2¹⁴ = 321111294967 is a prime.

It is a super-2 number, since 2×321111311351² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321111311359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20547260 + ... + 20562881.

It is an arithmetic number, because the mean of its divisors is an integer number (41069031858).

Almost surely, 2^321111311351 is an apocalyptic number.

321111311351 is a deficient number, since it is larger than the sum of its proper divisors (7440943513).

321111311351 is a wasteful number, since it uses less digits than its factorization.

321111311351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41110321.

The product of its digits is 270, while the sum is 23.

Adding to 321111311351 its reverse (153113111123), we get a palindrome (474224422474).

The spelling of 321111311351 in words is "three hundred twenty-one billion, one hundred eleven million, three hundred eleven thousand, three hundred fifty-one".