321434403132220 has 48 divisors (see below), whose sum is σ = 771444246218688. Its totient is φ = 110205841259520.

The previous prime is 321434403132151. The next prime is 321434403132239. The reversal of 321434403132220 is 22231304434123.

It is a congruent number.

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, 69440884 + ... + 73924996.

It is an arithmetic number, because the mean of its divisors is an integer number (16071755129556).

Almost surely, 2^{321434403132220} is an apocalyptic number.

It is an amenable number.

321434403132220 is an abundant number, since it is smaller than the sum of its proper divisors (450009843086468).

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

321434403132220 is a wasteful number, since it uses less digits than its factorization.

321434403132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4996150 (or 4996148 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 321434403132220 its reverse (22231304434123), we get a palindrome (343665707566343).

The spelling of 321434403132220 in words is "three hundred twenty-one trillion, four hundred thirty-four billion, four hundred three million, one hundred thirty-two thousand, two hundred twenty".