12320341420 has 12 divisors (see below), whose sum is σ = 25872717024. Its totient is φ = 4928136560.

The previous prime is 12320341409. The next prime is 12320341421. The reversal of 12320341420 is 2414302321.

It is a junction number, because it is equal to n+sod(n) for n = 12320341391 and 12320341400.

It is not an unprimeable number, because it can be changed into a prime (12320341421) 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, 308008516 + ... + 308008555.

It is an arithmetic number, because the mean of its divisors is an integer number (2156059752).

Almost surely, 2^12320341420 is an apocalyptic number.

12320341420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320341420 is an abundant number, since it is smaller than the sum of its proper divisors (13552375604).

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

12320341420 is a wasteful number, since it uses less digits than its factorization.

12320341420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616017080 (or 616017078 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12320341420 its reverse (2414302321), we get a palindrome (14734643741).

The spelling of 12320341420 in words is "twelve billion, three hundred twenty million, three hundred forty-one thousand, four hundred twenty".