12312300220 has 24 divisors (see below), whose sum is σ = 28206361008. Its totient is φ = 4477200000.

The previous prime is 12312300199. The next prime is 12312300251. The reversal of 12312300220 is 2200321321.

It is a junction number, because it is equal to n+sod(n) for n = 12312300194 and 12312300203.

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, 27982281 + ... + 27982720.

It is an arithmetic number, because the mean of its divisors is an integer number (1175265042).

Almost surely, 2^12312300220 is an apocalyptic number.

12312300220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312300220 is an abundant number, since it is smaller than the sum of its proper divisors (15894060788).

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

12312300220 is a wasteful number, since it uses less digits than its factorization.

12312300220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55965021 (or 55965019 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12312300220 its reverse (2200321321), we get a palindrome (14512621541).

The spelling of 12312300220 in words is "twelve billion, three hundred twelve million, three hundred thousand, two hundred twenty".