12430120442 has 8 divisors (see below), whose sum is σ = 18660112500. Its totient is φ = 6210082944.

The previous prime is 12430120433. The next prime is 12430120457. The reversal of 12430120442 is 24402103421.

It can be written as a sum of positive squares in 2 ways, for example, as 12261354361 + 168766081 = 110731^2 + 12991^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2485517 + ... + 2490512.

Almost surely, 2^12430120442 is an apocalyptic number.

12430120442 is a deficient number, since it is larger than the sum of its proper divisors (6229992058).

12430120442 is a wasteful number, since it uses less digits than its factorization.

12430120442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4977280.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12430120442 its reverse (24402103421), we get a palindrome (36832223863).

The spelling of 12430120442 in words is "twelve billion, four hundred thirty million, one hundred twenty thousand, four hundred forty-two".