12403002431 has 8 divisors (see below), whose sum is σ = 13129081680. Its totient is φ = 11696815872.

The previous prime is 12403002427. The next prime is 12403002433. The reversal of 12403002431 is 13420030421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12403002431 - 2² = 12403002427 is a prime.

It is a super-2 number, since 2×12403002431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403002433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4971890 + ... + 4974383.

It is an arithmetic number, because the mean of its divisors is an integer number (1641135210).

Almost surely, 2^12403002431 is an apocalyptic number.

12403002431 is a deficient number, since it is larger than the sum of its proper divisors (726079249).

12403002431 is an equidigital number, since it uses as much as digits as its factorization.

12403002431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9946345.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12403002431 its reverse (13420030421), we get a palindrome (25823032852).

The spelling of 12403002431 in words is "twelve billion, four hundred three million, two thousand, four hundred thirty-one".