12321443402 has 16 divisors (see below), whose sum is σ = 18738263040. Its totient is φ = 6075540432.

The previous prime is 12321443363. The next prime is 12321443417. The reversal of 12321443402 is 20434412321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89063 + ... + 180485.

It is an arithmetic number, because the mean of its divisors is an integer number (1171141440).

Almost surely, 2^12321443402 is an apocalyptic number.

12321443402 is a deficient number, since it is larger than the sum of its proper divisors (6416819638).

12321443402 is an equidigital number, since it uses as much as digits as its factorization.

12321443402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92357.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 12321443402 its reverse (20434412321), we get a palindrome (32755855723).

The spelling of 12321443402 in words is "twelve billion, three hundred twenty-one million, four hundred forty-three thousand, four hundred two".