12323210220 has 36 divisors (see below), whose sum is σ = 37380404880. Its totient is φ = 3286189344.

The previous prime is 12323210219. The next prime is 12323210231. The reversal of 12323210220 is 2201232321.

12323210220 is a `hidden beast` number, since 1 + 232 + 3 + 210 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12323210193 and 12323210202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34230960 + ... + 34231319.

It is an arithmetic number, because the mean of its divisors is an integer number (1038344580).

Almost surely, 2^12323210220 is an apocalyptic number.

12323210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12323210220 is an abundant number, since it is smaller than the sum of its proper divisors (25057194660).

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

12323210220 is a wasteful number, since it uses less digits than its factorization.

12323210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68462294 (or 68462289 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 12323210220 its reverse (2201232321), we get a palindrome (14524442541).

The spelling of 12323210220 in words is "twelve billion, three hundred twenty-three million, two hundred ten thousand, two hundred twenty".