400341240002443 has 2 divisors, whose sum is σ = 400341240002444. Its totient is φ = 400341240002442.

The previous prime is 400341240002437. The next prime is 400341240002461. The reversal of 400341240002443 is 344200042143004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400341240002443 - 2⁵ = 400341240002411 is a prime.

It is not a weakly prime, because it can be changed into another prime (400341240702443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200170620001221 + 200170620001222.

It is an arithmetic number, because the mean of its divisors is an integer number (200170620001222).

Almost surely, 2^{400341240002443} is an apocalyptic number.

400341240002443 is a deficient number, since it is larger than the sum of its proper divisors (1).

400341240002443 is an equidigital number, since it uses as much as digits as its factorization.

400341240002443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 400341240002443 its reverse (344200042143004), we get a palindrome (744541282145447).

The spelling of 400341240002443 in words is "four hundred trillion, three hundred forty-one billion, two hundred forty million, two thousand, four hundred forty-three".