401213223289 has 2 divisors, whose sum is σ = 401213223290. Its totient is φ = 401213223288.

The previous prime is 401213223287. The next prime is 401213223337. The reversal of 401213223289 is 982322312104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234987410025 + 166225813264 = 484755^2 + 407708^2 .

It is a cyclic number.

It is not a de Polignac number, because 401213223289 - 2¹ = 401213223287 is a prime.

Together with 401213223287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (401213223283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200606611644 + 200606611645.

It is an arithmetic number, because the mean of its divisors is an integer number (200606611645).

Almost surely, 2^401213223289 is an apocalyptic number.

It is an amenable number.

401213223289 is a deficient number, since it is larger than the sum of its proper divisors (1).

401213223289 is an equidigital number, since it uses as much as digits as its factorization.

401213223289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 401213223289 in words is "four hundred one billion, two hundred thirteen million, two hundred twenty-three thousand, two hundred eighty-nine".