12420321133 has 8 divisors (see below), whose sum is σ = 13557788640. Its totient is φ = 11284244880.

The previous prime is 12420321047. The next prime is 12420321143. The reversal of 12420321133 is 33112302421.

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 12420321133 - 2⁹ = 12420320621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420321143) 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 7 ways as a sum of consecutive naturals, for example, 329098 + ... + 364891.

It is an arithmetic number, because the mean of its divisors is an integer number (1694723580).

Almost surely, 2^12420321133 is an apocalyptic number.

It is an amenable number.

12420321133 is a deficient number, since it is larger than the sum of its proper divisors (1137467507).

12420321133 is a wasteful number, since it uses less digits than its factorization.

12420321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695627.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12420321133 its reverse (33112302421), we get a palindrome (45532623554).

The spelling of 12420321133 in words is "twelve billion, four hundred twenty million, three hundred twenty-one thousand, one hundred thirty-three".