321110312201320 has 16 divisors (see below), whose sum is σ = 722498202453060. Its totient is φ = 128444124880512.

The previous prime is 321110312201293. The next prime is 321110312201321. The reversal of 321110312201320 is 23102213011123.

It can be written as a sum of positive squares in 2 ways, for example, as 296116571809444 + 24993740391876 = 17208038^2 + 4999374^2 .

It is a super-2 number, since 2×321110312201320² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321110312201291 and 321110312201300.

It is not an unprimeable number, because it can be changed into a prime (321110312201321) 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, 4013878902477 + ... + 4013878902556.

Almost surely, 2^{321110312201320} is an apocalyptic number.

It is an amenable number.

321110312201320 is an abundant number, since it is smaller than the sum of its proper divisors (401387890251740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321110312201320 is a wasteful number, since it uses less digits than its factorization.

321110312201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8027757805044 (or 8027757805040 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 321110312201320 its reverse (23102213011123), we get a palindrome (344212525212443).

The spelling of 321110312201320 in words is "three hundred twenty-one trillion, one hundred ten billion, three hundred twelve million, two hundred one thousand, three hundred twenty".