401031443447 has 2 divisors, whose sum is σ = 401031443448. Its totient is φ = 401031443446.

The previous prime is 401031443389. The next prime is 401031443459. The reversal of 401031443447 is 744344130104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401031443447 - 2¹⁸ = 401031181303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401031443467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200515721723 + 200515721724.

It is an arithmetic number, because the mean of its divisors is an integer number (200515721724).

Almost surely, 2^401031443447 is an apocalyptic number.

401031443447 is a deficient number, since it is larger than the sum of its proper divisors (1).

401031443447 is an equidigital number, since it uses as much as digits as its factorization.

401031443447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 35.

The spelling of 401031443447 in words is "four hundred one billion, thirty-one million, four hundred forty-three thousand, four hundred forty-seven".