12401322102 has 80 divisors (see below), whose sum is σ = 30024740592. Its totient is φ = 3803163840.

The previous prime is 12401322013. The next prime is 12401322127. The reversal of 12401322102 is 20122310421.

It is a happy number.

12401322102 is a `hidden beast` number, since 1 + 240 + 1 + 322 + 102 = 666.

12401322102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 636952 + ... + 656132.

Almost surely, 2^12401322102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12401322102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15012370296).

12401322102 is an abundant number, since it is smaller than the sum of its proper divisors (17623418490).

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

12401322102 is a wasteful number, since it uses less digits than its factorization.

12401322102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19515 (or 19506 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12401322102 its reverse (20122310421), we get a palindrome (32523632523).

The spelling of 12401322102 in words is "twelve billion, four hundred one million, three hundred twenty-two thousand, one hundred two".