12421604363331 has 8 divisors (see below), whose sum is σ = 16562222099280. Its totient is φ = 8281028101472.

The previous prime is 12421604363327. The next prime is 12421604363351. The reversal of 12421604363331 is 13336340612421.

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

It is a cyclic number.

It is not a de Polignac number, because 12421604363331 - 2² = 12421604363327 is a prime.

It is a super-2 number, since 2×12421604363331² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12421604363331.

It is not an unprimeable number, because it can be changed into a prime (12421604363351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9662820 + ... + 10872593.

It is an arithmetic number, because the mean of its divisors is an integer number (2070277762410).

Almost surely, 2^{12421604363331} is an apocalyptic number.

12421604363331 is a deficient number, since it is larger than the sum of its proper divisors (4140617735949).

12421604363331 is a wasteful number, since it uses less digits than its factorization.

12421604363331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20737045.

The product of its (nonzero) digits is 186624, while the sum is 39.

Adding to 12421604363331 its reverse (13336340612421), we get a palindrome (25757944975752).

The spelling of 12421604363331 in words is "twelve trillion, four hundred twenty-one billion, six hundred four million, three hundred sixty-three thousand, three hundred thirty-one".