323212231220 has 24 divisors (see below), whose sum is σ = 678756390144. Its totient is φ = 129282853536.

The previous prime is 323212231211. The next prime is 323212231241. The reversal of 323212231220 is 22132212323.

It is a super-2 number, since 2×323212231220² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2302697 + ... + 2439023.

It is an arithmetic number, because the mean of its divisors is an integer number (28281516256).

Almost surely, 2^323212231220 is an apocalyptic number.

It is an amenable number.

323212231220 is an abundant number, since it is smaller than the sum of its proper divisors (355544158924).

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

323212231220 is a wasteful number, since it uses less digits than its factorization.

323212231220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254879 (or 254877 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 323212231220 its reverse (22132212323), we get a palindrome (345344443543).

The spelling of 323212231220 in words is "three hundred twenty-three billion, two hundred twelve million, two hundred thirty-one thousand, two hundred twenty".