401121113 has 4 divisors (see below), whose sum is σ = 401167488. Its totient is φ = 401074740.

The previous prime is 401121101. The next prime is 401121169. The reversal of 401121113 is 311121104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 401121113 - 2⁸ = 401120857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401123113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5933 + ... + 28938.

It is an arithmetic number, because the mean of its divisors is an integer number (100291872).

Almost surely, 2^401121113 is an apocalyptic number.

It is an amenable number.

401121113 is a deficient number, since it is larger than the sum of its proper divisors (46375).

401121113 is a wasteful number, since it uses less digits than its factorization.

401121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46374.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 401121113 is about 20028.0082134994. The cubic root of 401121113 is about 737.4940268788.

Adding to 401121113 its reverse (311121104), we get a palindrome (712242217).

Subtracting from 401121113 its reverse (311121104), we obtain a palindrome (90000009).

The spelling of 401121113 in words is "four hundred one million, one hundred twenty-one thousand, one hundred thirteen".