424101121 has 4 divisors (see below), whose sum is σ = 428300244. Its totient is φ = 419902000.

The previous prime is 424101113. The next prime is 424101137. The reversal of 424101121 is 121101424.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 358572096 + 65529025 = 18936^2 + 8095^2 .

It is a cyclic number.

It is not a de Polignac number, because 424101121 - 2³ = 424101113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424101095 and 424101104.

It is not an unprimeable number, because it can be changed into a prime (424101521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099410 + ... + 2099611.

It is an arithmetic number, because the mean of its divisors is an integer number (107075061).

Almost surely, 2^424101121 is an apocalyptic number.

It is an amenable number.

424101121 is a deficient number, since it is larger than the sum of its proper divisors (4199123).

424101121 is a wasteful number, since it uses less digits than its factorization.

424101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199122.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 424101121 is about 20593.7155705327. The cubic root of 424101121 is about 751.3168692687.

Adding to 424101121 its reverse (121101424), we get a palindrome (545202545).

The spelling of 424101121 in words is "four hundred twenty-four million, one hundred one thousand, one hundred twenty-one".