401311219 has 2 divisors, whose sum is σ = 401311220. Its totient is φ = 401311218.

The previous prime is 401311189. The next prime is 401311247. The reversal of 401311219 is 912113104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401311219 - 2⁷ = 401311091 is a prime.

It is a super-2 number, since 2×401311219² = 322101388990531922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401311219.

It is not a weakly prime, because it can be changed into another prime (401311249) 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, 200655609 + 200655610.

It is an arithmetic number, because the mean of its divisors is an integer number (200655610).

Almost surely, 2^401311219 is an apocalyptic number.

401311219 is a deficient number, since it is larger than the sum of its proper divisors (1).

401311219 is an equidigital number, since it uses as much as digits as its factorization.

401311219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 401311219 is about 20032.7536549522. The cubic root of 401311219 is about 737.6105169627.

The spelling of 401311219 in words is "four hundred one million, three hundred eleven thousand, two hundred nineteen".