12434431420 has 48 divisors (see below), whose sum is σ = 26291865600. Its totient is φ = 4939665984.

The previous prime is 12434431409. The next prime is 12434431423. The reversal of 12434431420 is 2413443421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434431423) 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 15 ways as a sum of consecutive naturals, for example, 2413287 + ... + 2418433.

It is an arithmetic number, because the mean of its divisors is an integer number (547747200).

Almost surely, 2^12434431420 is an apocalyptic number.

12434431420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12434431420 is an abundant number, since it is smaller than the sum of its proper divisors (13857434180).

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

12434431420 is a wasteful number, since it uses less digits than its factorization.

12434431420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5962 (or 5960 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 12434431420 its reverse (2413443421), we get a palindrome (14847874841).

The spelling of 12434431420 in words is "twelve billion, four hundred thirty-four million, four hundred thirty-one thousand, four hundred twenty".