411001121 has 4 divisors (see below), whose sum is σ = 411044244. Its totient is φ = 410958000.

The previous prime is 411001111. The next prime is 411001127. The reversal of 411001121 is 121100114.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 374229025 + 36772096 = 19345^2 + 6064^2 .

It is a cyclic number.

It is not a de Polignac number, because 411001121 - 2⁶ = 411001057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (411001127) 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, 230 + ... + 28671.

It is an arithmetic number, because the mean of its divisors is an integer number (102761061).

Almost surely, 2^411001121 is an apocalyptic number.

It is an amenable number.

411001121 is a deficient number, since it is larger than the sum of its proper divisors (43123).

411001121 is a wasteful number, since it uses less digits than its factorization.

411001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43122.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 411001121 is about 20273.1625801205. The cubic root of 411001121 is about 743.5000501243.

Adding to 411001121 its reverse (121100114), we get a palindrome (532101235).

The spelling of 411001121 in words is "four hundred eleven million, one thousand, one hundred twenty-one".