401001126111 has 24 divisors (see below), whose sum is σ = 593403143424. Its totient is φ = 260790935040.

The previous prime is 401001126049. The next prime is 401001126157. The reversal of 401001126111 is 111621100104.

401001126111 is a `hidden beast` number, since 40 + 1 + 0 + 0 + 1 + 12 + 611 + 1 = 666.

It is not a de Polignac number, because 401001126111 - 2⁶ = 401001126047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401001126611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4865730 + ... + 4947456.

It is an arithmetic number, because the mean of its divisors is an integer number (24725130976).

Almost surely, 2^401001126111 is an apocalyptic number.

401001126111 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

401001126111 is a deficient number, since it is larger than the sum of its proper divisors (192402017313).

401001126111 is a wasteful number, since it uses less digits than its factorization.

401001126111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95071 (or 95068 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 401001126111 its reverse (111621100104), we get a palindrome (512622226215).

The spelling of 401001126111 in words is "four hundred one billion, one million, one hundred twenty-six thousand, one hundred eleven".