12231020 has 12 divisors (see below), whose sum is σ = 25685184. Its totient is φ = 4892400.

The previous prime is 12231001. The next prime is 12231059. The reversal of 12231020 is 2013221.

It is a happy number.

12231020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12230992 and 12231010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305756 + ... + 305795.

It is an arithmetic number, because the mean of its divisors is an integer number (2140432).

Almost surely, 2^12231020 is an apocalyptic number.

12231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12231020 is an abundant number, since it is smaller than the sum of its proper divisors (13454164).

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

12231020 is a wasteful number, since it uses less digits than its factorization.

12231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611560 (or 611558 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12231020 is about 3497.2875203506. The cubic root of 12231020 is about 230.4026971698.

Adding to 12231020 its reverse (2013221), we get a palindrome (14244241).

The spelling of 12231020 in words is "twelve million, two hundred thirty-one thousand, twenty".