12443230420424 has 8 divisors (see below), whose sum is σ = 23331057038310. Its totient is φ = 6221615210208.

The previous prime is 12443230420409. The next prime is 12443230420441. The reversal of 12443230420424 is 42402403234421.

It can be written as a sum of positive squares in only one way, i.e., 12439855972324 + 3374448100 = 3527018^2 + 58090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×12443230420424⁴ (a number of 53 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777701901269 + ... + 777701901284.

Almost surely, 2^{12443230420424} is an apocalyptic number.

It is an amenable number.

12443230420424 is a deficient number, since it is larger than the sum of its proper divisors (10887826617886).

12443230420424 is a wasteful number, since it uses less digits than its factorization.

12443230420424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555403802559 (or 1555403802555 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 12443230420424 its reverse (42402403234421), we get a palindrome (54845633654845).

The spelling of 12443230420424 in words is "twelve trillion, four hundred forty-three billion, two hundred thirty million, four hundred twenty thousand, four hundred twenty-four".