401205223 has 2 divisors, whose sum is σ = 401205224. Its totient is φ = 401205222.

The previous prime is 401205209. The next prime is 401205271. The reversal of 401205223 is 322502104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401205223 - 2⁵ = 401205191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401205223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401205323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200602611 + 200602612.

It is an arithmetic number, because the mean of its divisors is an integer number (200602612).

Almost surely, 2^401205223 is an apocalyptic number.

401205223 is a deficient number, since it is larger than the sum of its proper divisors (1).

401205223 is an equidigital number, since it uses as much as digits as its factorization.

401205223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 401205223 is about 20030.1079128396. The cubic root of 401205223 is about 737.5455709847.

Adding to 401205223 its reverse (322502104), we get a palindrome (723707327).

The spelling of 401205223 in words is "four hundred one million, two hundred five thousand, two hundred twenty-three".