400421131033141 has 2 divisors, whose sum is σ = 400421131033142. Its totient is φ = 400421131033140.

The previous prime is 400421131033129. The next prime is 400421131033171. The reversal of 400421131033141 is 141330131124004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236287777439025 + 164133353594116 = 15371655^2 + 12811454^2 .

It is a cyclic number.

It is not a de Polignac number, because 400421131033141 - 2⁵ = 400421131033109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400421131033111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200210565516570 + 200210565516571.

It is an arithmetic number, because the mean of its divisors is an integer number (200210565516571).

Almost surely, 2^{400421131033141} is an apocalyptic number.

It is an amenable number.

400421131033141 is a deficient number, since it is larger than the sum of its proper divisors (1).

400421131033141 is an equidigital number, since it uses as much as digits as its factorization.

400421131033141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 400421131033141 its reverse (141330131124004), we get a palindrome (541751262157145).

The spelling of 400421131033141 in words is "four hundred trillion, four hundred twenty-one billion, one hundred thirty-one million, thirty-three thousand, one hundred forty-one".