12320311430 has 32 divisors (see below), whose sum is σ = 26029636416. Its totient is φ = 4109940864.

The previous prime is 12320311403. The next prime is 12320311433. The reversal of 12320311430 is 3411302321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320311433) 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, 2375849 + ... + 2381028.

It is an arithmetic number, because the mean of its divisors is an integer number (813426138).

Almost surely, 2^12320311430 is an apocalyptic number.

12320311430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320311430 is an abundant number, since it is smaller than the sum of its proper divisors (13709324986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12320311430 is a wasteful number, since it uses less digits than its factorization.

12320311430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756928.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12320311430 its reverse (3411302321), we get a palindrome (15731613751).

The spelling of 12320311430 in words is "twelve billion, three hundred twenty million, three hundred eleven thousand, four hundred thirty".