12303231020 has 24 divisors (see below), whose sum is σ = 26670231168. Its totient is φ = 4762540800.

The previous prime is 12303231013. The next prime is 12303231037. The reversal of 12303231020 is 2013230321.

It is a self number, because there is not a number n which added to its sum of digits gives 12303231020.

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, 9921341 + ... + 9922580.

It is an arithmetic number, because the mean of its divisors is an integer number (1111259632).

Almost surely, 2^12303231020 is an apocalyptic number.

12303231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12303231020 is an abundant number, since it is smaller than the sum of its proper divisors (14367000148).

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

12303231020 is a wasteful number, since it uses less digits than its factorization.

12303231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19843961 (or 19843959 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12303231020 its reverse (2013230321), we get a palindrome (14316461341).

The spelling of 12303231020 in words is "twelve billion, three hundred three million, two hundred thirty-one thousand, twenty".