41213121 has 4 divisors (see below), whose sum is σ = 54950832. Its totient is φ = 27475412.

The previous prime is 41213119. The next prime is 41213149. The reversal of 41213121 is 12131214.

41213121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 41213121 - 2¹ = 41213119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41213121.

It is not an unprimeable number, because it can be changed into a prime (41213101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6868851 + ... + 6868856.

It is an arithmetic number, because the mean of its divisors is an integer number (13737708).

Almost surely, 2^41213121 is an apocalyptic number.

It is an amenable number.

41213121 is a deficient number, since it is larger than the sum of its proper divisors (13737711).

41213121 is a wasteful number, since it uses less digits than its factorization.

41213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13737710.

The product of its digits is 48, while the sum is 15.

The square root of 41213121 is about 6419.7446210889. The cubic root of 41213121 is about 345.4181613049.

Adding to 41213121 its reverse (12131214), we get a palindrome (53344335).

The spelling of 41213121 in words is "forty-one million, two hundred thirteen thousand, one hundred twenty-one".