12402307329 has 4 divisors (see below), whose sum is σ = 16536409776. Its totient is φ = 8268204884.

The previous prime is 12402307327. The next prime is 12402307331. The reversal of 12402307329 is 92370320421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92370320421 = 3 ⋅30790106807.

It is an interprime number because it is at equal distance from previous prime (12402307327) and next prime (12402307331).

It is a cyclic number.

It is not a de Polignac number, because 12402307329 - 2¹ = 12402307327 is a prime.

It is a super-2 number, since 2×12402307329² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12402307329.

It is not an unprimeable number, because it can be changed into a prime (12402307327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2067051219 + ... + 2067051224.

It is an arithmetic number, because the mean of its divisors is an integer number (4134102444).

Almost surely, 2^12402307329 is an apocalyptic number.

It is an amenable number.

12402307329 is a deficient number, since it is larger than the sum of its proper divisors (4134102447).

12402307329 is an equidigital number, since it uses as much as digits as its factorization.

12402307329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134102446.

The product of its (nonzero) digits is 18144, while the sum is 33.

The spelling of 12402307329 in words is "twelve billion, four hundred two million, three hundred seven thousand, three hundred twenty-nine".