405002173211 has 2 divisors, whose sum is σ = 405002173212. Its totient is φ = 405002173210.

The previous prime is 405002173181. The next prime is 405002173217. The reversal of 405002173211 is 112371200504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 405002173211 - 2¹⁰ = 405002172187 is a prime.

It is not a weakly prime, because it can be changed into another prime (405002173217) 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 as a sum of consecutive naturals, namely, 202501086605 + 202501086606.

It is an arithmetic number, because the mean of its divisors is an integer number (202501086606).

Almost surely, 2^405002173211 is an apocalyptic number.

405002173211 is a deficient number, since it is larger than the sum of its proper divisors (1).

405002173211 is an equidigital number, since it uses as much as digits as its factorization.

405002173211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 405002173211 its reverse (112371200504), we get a palindrome (517373373715).

The spelling of 405002173211 in words is "four hundred five billion, two million, one hundred seventy-three thousand, two hundred eleven".