12420331102 has 24 divisors (see below), whose sum is σ = 19349176968. Its totient is φ = 5979148560.

The previous prime is 12420331081. The next prime is 12420331153. The reversal of 12420331102 is 20113302421.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12420331102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 362233 + ... + 395035.

It is an arithmetic number, because the mean of its divisors is an integer number (806215707).

Almost surely, 2^12420331102 is an apocalyptic number.

12420331102 is a deficient number, since it is larger than the sum of its proper divisors (6928845866).

12420331102 is a wasteful number, since it uses less digits than its factorization.

12420331102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33064 (or 33033 counting only the distinct ones).

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

Adding to 12420331102 its reverse (20113302421), we get a palindrome (32533633523).

The spelling of 12420331102 in words is "twelve billion, four hundred twenty million, three hundred thirty-one thousand, one hundred two".