12320401121 has 8 divisors (see below), whose sum is σ = 14093163840. Its totient is φ = 10550814768.

The previous prime is 12320401111. The next prime is 12320401133. The reversal of 12320401121 is 12110402321.

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 12320401121 - 2⁶ = 12320401057 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12320401121.

It is not an unprimeable number, because it can be changed into a prime (12320401111) 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, 785771 + ... + 801296.

It is an arithmetic number, because the mean of its divisors is an integer number (1761645480).

Almost surely, 2^12320401121 is an apocalyptic number.

It is an amenable number.

12320401121 is a deficient number, since it is larger than the sum of its proper divisors (1772762719).

12320401121 is a wasteful number, since it uses less digits than its factorization.

12320401121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588183.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12320401121 its reverse (12110402321), we get a palindrome (24430803442).

The spelling of 12320401121 in words is "twelve billion, three hundred twenty million, four hundred one thousand, one hundred twenty-one".