12320112402 has 24 divisors (see below), whose sum is σ = 28746929484. Its totient is φ = 3790803744.

The previous prime is 12320112401. The next prime is 12320112419. The reversal of 12320112402 is 20421102321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12054063681 + 266048721 = 109791^2 + 16311^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12320112401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26324793 + ... + 26325260.

Almost surely, 2^12320112402 is an apocalyptic number.

12320112402 is an abundant number, since it is smaller than the sum of its proper divisors (16426817082).

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

12320112402 is a wasteful number, since it uses less digits than its factorization.

12320112402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52650074 (or 52650071 counting only the distinct ones).

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

Adding to 12320112402 its reverse (20421102321), we get a palindrome (32741214723).

The spelling of 12320112402 in words is "twelve billion, three hundred twenty million, one hundred twelve thousand, four hundred two".