321204120023020 has 48 divisors (see below), whose sum is σ = 757998752817600. Its totient is φ = 113441990213376.

The previous prime is 321204120022999. The next prime is 321204120023027. The reversal of 321204120023020 is 20320021402123.

It is a junction number, because it is equal to n+sod(n) for n = 321204120022982 and 321204120023000.

It is not an unprimeable number, because it can be changed into a prime (321204120023027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26856525795 + ... + 26856537754.

It is an arithmetic number, because the mean of its divisors is an integer number (15791640683700).

Almost surely, 2^{321204120023020} is an apocalyptic number.

It is an amenable number.

321204120023020 is an abundant number, since it is smaller than the sum of its proper divisors (436794632794580).

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

321204120023020 is a wasteful number, since it uses less digits than its factorization.

321204120023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53713063594 (or 53713063592 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 321204120023020 its reverse (20320021402123), we get a palindrome (341524141425143).

The spelling of 321204120023020 in words is "three hundred twenty-one trillion, two hundred four billion, one hundred twenty million, twenty-three thousand, twenty".