401100011011111 has 4 divisors (see below), whose sum is σ = 401100909241312. Its totient is φ = 401099112780912.

The previous prime is 401100011011087. The next prime is 401100011011123. The reversal of 401100011011111 is 111110110001104.

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

It is a cyclic number.

It is not a de Polignac number, because 401100011011111 - 2⁹ = 401100011010599 is a prime.

It is a super-2 number, since 2×401100011011111² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401100011011091 and 401100011011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401100011011211) 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, 448444950 + ... + 449338483.

It is an arithmetic number, because the mean of its divisors is an integer number (100275227310328).

Almost surely, 2^{401100011011111} is an apocalyptic number.

401100011011111 is a deficient number, since it is larger than the sum of its proper divisors (898230201).

401100011011111 is an equidigital number, since it uses as much as digits as its factorization.

401100011011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898230200.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 401100011011111 its reverse (111110110001104), we get a palindrome (512210121012215).

The spelling of 401100011011111 in words is "four hundred one trillion, one hundred billion, eleven million, eleven thousand, one hundred eleven".