12312320302 has 32 divisors (see below), whose sum is σ = 20571563520. Its totient is φ = 5499980640.

The previous prime is 12312320297. The next prime is 12312320309. The reversal of 12312320302 is 20302321321.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12312320302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312320309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37153 + ... + 161260.

It is an arithmetic number, because the mean of its divisors is an integer number (642861360).

Almost surely, 2^12312320302 is an apocalyptic number.

12312320302 is a deficient number, since it is larger than the sum of its proper divisors (8259243218).

12312320302 is a wasteful number, since it uses less digits than its factorization.

12312320302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198528.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12312320302 its reverse (20302321321), we get a palindrome (32614641623).

The spelling of 12312320302 in words is "twelve billion, three hundred twelve million, three hundred twenty thousand, three hundred two".