12404312329 has 2 divisors, whose sum is σ = 12404312330. Its totient is φ = 12404312328.

The previous prime is 12404312267. The next prime is 12404312357. The reversal of 12404312329 is 92321340421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12303911929 + 100400400 = 110923^2 + 10020^2 .

It is a cyclic number.

It is not a de Polignac number, because 12404312329 - 2⁷ = 12404312201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12404312329.

It is not a weakly prime, because it can be changed into another prime (12404312359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202156164 + 6202156165.

It is an arithmetic number, because the mean of its divisors is an integer number (6202156165).

Almost surely, 2^12404312329 is an apocalyptic number.

It is an amenable number.

12404312329 is a deficient number, since it is larger than the sum of its proper divisors (1).

12404312329 is an equidigital number, since it uses as much as digits as its factorization.

12404312329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 12404312329 in words is "twelve billion, four hundred four million, three hundred twelve thousand, three hundred twenty-nine".