321131020330 has 32 divisors (see below), whose sum is σ = 578913515136. Its totient is φ = 128257504704.

The previous prime is 321131020319. The next prime is 321131020423. The reversal of 321131020330 is 33020131123.

It is a junction number, because it is equal to n+sod(n) for n = 321131020298 and 321131020307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23558977 + ... + 23572603.

It is an arithmetic number, because the mean of its divisors is an integer number (18091047348).

Almost surely, 2^321131020330 is an apocalyptic number.

321131020330 is a deficient number, since it is larger than the sum of its proper divisors (257782494806).

321131020330 is a wasteful number, since it uses less digits than its factorization.

321131020330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17038.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 321131020330 its reverse (33020131123), we get a palindrome (354151151453).

The spelling of 321131020330 in words is "three hundred twenty-one billion, one hundred thirty-one million, twenty thousand, three hundred thirty".