11234413121 has 4 divisors (see below), whose sum is σ = 11235287892. Its totient is φ = 11233538352.

The previous prime is 11234413109. The next prime is 11234413139. The reversal of 11234413121 is 12131443211.

11234413121 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 an emirpimes, since its reverse is a distinct semiprime: 12131443211 = 47 ⋅258115813.

It can be written as a sum of positive squares in 2 ways, for example, as 6796188721 + 4438224400 = 82439^2 + 66620^2 .

It is a cyclic number.

It is not a de Polignac number, because 11234413121 - 2¹⁰ = 11234412097 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 (11234433121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417830 + ... + 443903.

It is an arithmetic number, because the mean of its divisors is an integer number (2808821973).

Almost surely, 2^11234413121 is an apocalyptic number.

It is an amenable number.

11234413121 is a deficient number, since it is larger than the sum of its proper divisors (874771).

11234413121 is an equidigital number, since it uses as much as digits as its factorization.

11234413121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874770.

The product of its digits is 576, while the sum is 23.

Adding to 11234413121 its reverse (12131443211), we get a palindrome (23365856332).

The spelling of 11234413121 in words is "eleven billion, two hundred thirty-four million, four hundred thirteen thousand, one hundred twenty-one".