400041244411243 has 2 divisors, whose sum is σ = 400041244411244. Its totient is φ = 400041244411242.

The previous prime is 400041244411229. The next prime is 400041244411297. The reversal of 400041244411243 is 342114442140004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400041244411243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400041244411199 and 400041244411208.

It is not a weakly prime, because it can be changed into another prime (400041244411043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200020622205621 + 200020622205622.

It is an arithmetic number, because the mean of its divisors is an integer number (200020622205622).

Almost surely, 2^{400041244411243} is an apocalyptic number.

400041244411243 is a deficient number, since it is larger than the sum of its proper divisors (1).

400041244411243 is an equidigital number, since it uses as much as digits as its factorization.

400041244411243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 400041244411243 its reverse (342114442140004), we get a palindrome (742155686551247).

The spelling of 400041244411243 in words is "four hundred trillion, forty-one billion, two hundred forty-four million, four hundred eleven thousand, two hundred forty-three".