400424021441113 has 4 divisors (see below), whose sum is σ = 400424163371748. Its totient is φ = 400423879510480.

The previous prime is 400424021441099. The next prime is 400424021441141. The reversal of 400424021441113 is 311144120424004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 291842453059609 + 108581568381504 = 17083397^2 + 10420248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400424021441113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400424021441173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66645778 + ... + 72405163.

It is an arithmetic number, because the mean of its divisors is an integer number (100106040842937).

Almost surely, 2^{400424021441113} is an apocalyptic number.

It is an amenable number.

400424021441113 is a deficient number, since it is larger than the sum of its proper divisors (141930635).

400424021441113 is a wasteful number, since it uses less digits than its factorization.

400424021441113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141930634.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 400424021441113 its reverse (311144120424004), we get a palindrome (711568141865117).

The spelling of 400424021441113 in words is "four hundred trillion, four hundred twenty-four billion, twenty-one million, four hundred forty-one thousand, one hundred thirteen".