12340321210 has 48 divisors (see below), whose sum is σ = 27199095840. Its totient is φ = 4008281760.

The previous prime is 12340321207. The next prime is 12340321219. The reversal of 12340321210 is 1212304321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (12340321219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 653436 + ... + 672055.

It is an arithmetic number, because the mean of its divisors is an integer number (566647830).

Almost surely, 2^12340321210 is an apocalyptic number.

12340321210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12340321210 is an abundant number, since it is smaller than the sum of its proper divisors (14858774630).

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

12340321210 is a wasteful number, since it uses less digits than its factorization.

12340321210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325531 (or 1325524 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12340321210 its reverse (1212304321), we get a palindrome (13552625531).

The spelling of 12340321210 in words is "twelve billion, three hundred forty million, three hundred twenty-one thousand, two hundred ten".