12320143430 has 64 divisors (see below), whose sum is σ = 26480176128. Its totient is φ = 4035208320.

The previous prime is 12320143427. The next prime is 12320143441. The reversal of 12320143430 is 3434102321.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 12320143396 and 12320143405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1368845 + ... + 1377815.

It is an arithmetic number, because the mean of its divisors is an integer number (413752752).

Almost surely, 2^12320143430 is an apocalyptic number.

12320143430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12320143430 is an abundant number, since it is smaller than the sum of its proper divisors (14160032698).

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

12320143430 is a wasteful number, since it uses less digits than its factorization.

12320143430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9861.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12320143430 its reverse (3434102321), we get a palindrome (15754245751).

The spelling of 12320143430 in words is "twelve billion, three hundred twenty million, one hundred forty-three thousand, four hundred thirty".