12400430323 has 8 divisors (see below), whose sum is σ = 12657823776. Its totient is φ = 12144782400.

The previous prime is 12400430303. The next prime is 12400430347. The reversal of 12400430323 is 32303400421.

It is a happy number.

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 12400430323 - 2⁵ = 12400430291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12400430294 and 12400430303.

It is not an unprimeable number, because it can be changed into a prime (12400430303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422023 + ... + 450448.

It is an arithmetic number, because the mean of its divisors is an integer number (1582227972).

Almost surely, 2^12400430323 is an apocalyptic number.

12400430323 is a deficient number, since it is larger than the sum of its proper divisors (257393453).

12400430323 is an equidigital number, since it uses as much as digits as its factorization.

12400430323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872765.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12400430323 its reverse (32303400421), we get a palindrome (44703830744).

The spelling of 12400430323 in words is "twelve billion, four hundred million, four hundred thirty thousand, three hundred twenty-three".