400041101 has 2 divisors, whose sum is σ = 400041102. Its totient is φ = 400041100.

The previous prime is 400041091. The next prime is 400041107. The reversal of 400041101 is 101140004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391011076 + 9030025 = 19774^2 + 3005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400041101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400041107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200020550 + 200020551.

It is an arithmetic number, because the mean of its divisors is an integer number (200020551).

Almost surely, 2^400041101 is an apocalyptic number.

It is an amenable number.

400041101 is a deficient number, since it is larger than the sum of its proper divisors (1).

400041101 is an equidigital number, since it uses as much as digits as its factorization.

400041101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 400041101 is about 20001.0274986062. The cubic root of 400041101 is about 736.8315350935.

Adding to 400041101 its reverse (101140004), we get a palindrome (501181105).

The spelling of 400041101 in words is "four hundred million, forty-one thousand, one hundred one".