12321400401 has 32 divisors (see below), whose sum is σ = 18752711040. Its totient is φ = 7990963200.

The previous prime is 12321400361. The next prime is 12321400423. The reversal of 12321400401 is 10400412321.

12321400401 is a `hidden beast` number, since 123 + 2 + 140 + 0 + 401 = 666.

It is not a de Polignac number, because 12321400401 - 2¹⁴ = 12321384017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12321400001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 375006 + ... + 406536.

It is an arithmetic number, because the mean of its divisors is an integer number (586022220).

Almost surely, 2^12321400401 is an apocalyptic number.

It is an amenable number.

12321400401 is a deficient number, since it is larger than the sum of its proper divisors (6431310639).

12321400401 is a wasteful number, since it uses less digits than its factorization.

12321400401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31934 (or 31928 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12321400401 its reverse (10400412321), we get a palindrome (22721812722).

The spelling of 12321400401 in words is "twelve billion, three hundred twenty-one million, four hundred thousand, four hundred one".