401000011 has 2 divisors, whose sum is σ = 401000012. Its totient is φ = 401000010.

The previous prime is 400999999. The next prime is 401000051. The reversal of 401000011 is 110000104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401000011 - 2¹⁵ = 400967243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400999958 and 401000003.

It is not a weakly prime, because it can be changed into another prime (401000051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200500005 + 200500006.

It is an arithmetic number, because the mean of its divisors is an integer number (200500006).

Almost surely, 2^401000011 is an apocalyptic number.

401000011 is a deficient number, since it is larger than the sum of its proper divisors (1).

401000011 is an equidigital number, since it uses as much as digits as its factorization.

401000011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 401000011 is about 20024.9846691577. The cubic root of 401000011 is about 737.4198007591.

Adding to 401000011 its reverse (110000104), we get a palindrome (511000115).

The spelling of 401000011 in words is "four hundred one million, eleven", and thus it is an aban number.