12340310020 has 12 divisors (see below), whose sum is σ = 25914651084. Its totient is φ = 4936124000.

The previous prime is 12340309907. The next prime is 12340310029. The reversal of 12340310020 is 2001304321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4164895296 + 8175414724 = 64536^2 + 90418^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12340309976 and 12340310003.

It is not an unprimeable number, because it can be changed into a prime (12340310029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308507731 + ... + 308507770.

It is an arithmetic number, because the mean of its divisors is an integer number (2159554257).

Almost surely, 2^12340310020 is an apocalyptic number.

12340310020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12340310020 is an abundant number, since it is smaller than the sum of its proper divisors (13574341064).

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

12340310020 is a wasteful number, since it uses less digits than its factorization.

12340310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617015510 (or 617015508 counting only the distinct ones).

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

Adding to 12340310020 its reverse (2001304321), we get a palindrome (14341614341).

The spelling of 12340310020 in words is "twelve billion, three hundred forty million, three hundred ten thousand, twenty".