400401103 has 2 divisors, whose sum is σ = 400401104. Its totient is φ = 400401102.

The previous prime is 400401097. The next prime is 400401109. The reversal of 400401103 is 301104004.

It is a balanced prime because it is at equal distance from previous prime (400401097) and next prime (400401109).

It is a cyclic number.

It is not a de Polignac number, because 400401103 - 2⁹ = 400400591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400401109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200200551 + 200200552.

It is an arithmetic number, because the mean of its divisors is an integer number (200200552).

Almost surely, 2^400401103 is an apocalyptic number.

400401103 is a deficient number, since it is larger than the sum of its proper divisors (1).

400401103 is an equidigital number, since it uses as much as digits as its factorization.

400401103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 400401103 is about 20010.0250624531. The cubic root of 400401103 is about 737.0524968021.

Adding to 400401103 its reverse (301104004), we get a palindrome (701505107).

The spelling of 400401103 in words is "four hundred million, four hundred one thousand, one hundred three".