12400204001 has 2 divisors, whose sum is σ = 12400204002. Its totient is φ = 12400204000.

The previous prime is 12400203967. The next prime is 12400204009. The reversal of 12400204001 is 10040200421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11436163600 + 964040401 = 106940^2 + 31049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12400204001 is a prime.

It is not a weakly prime, because it can be changed into another prime (12400204009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200102000 + 6200102001.

It is an arithmetic number, because the mean of its divisors is an integer number (6200102001).

Almost surely, 2^12400204001 is an apocalyptic number.

It is an amenable number.

12400204001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12400204001 is an equidigital number, since it uses as much as digits as its factorization.

12400204001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 12400204001 its reverse (10040200421), we get a palindrome (22440404422).

The spelling of 12400204001 in words is "twelve billion, four hundred million, two hundred four thousand, one".