404321101 has 2 divisors, whose sum is σ = 404321102. Its totient is φ = 404321100.

The previous prime is 404321087. The next prime is 404321129. The reversal of 404321101 is 101123404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376748100 + 27573001 = 19410^2 + 5251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404321101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404321171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202160550 + 202160551.

It is an arithmetic number, because the mean of its divisors is an integer number (202160551).

Almost surely, 2^404321101 is an apocalyptic number.

It is an amenable number.

404321101 is a deficient number, since it is larger than the sum of its proper divisors (1).

404321101 is an equidigital number, since it uses as much as digits as its factorization.

404321101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 404321101 is about 20107.7373416305. The cubic root of 404321101 is about 739.4499814775.

Adding to 404321101 its reverse (101123404), we get a palindrome (505444505).

The spelling of 404321101 in words is "four hundred four million, three hundred twenty-one thousand, one hundred one".