11345121 has 6 divisors (see below), whose sum is σ = 16387410. Its totient is φ = 7563408.

The previous prime is 11345093. The next prime is 11345143. The reversal of 11345121 is 12154311.

11345121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11128896 + 216225 = 3336^2 + 465^2 .

It is not a de Polignac number, because 11345121 - 2⁹ = 11344609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11345094 and 11345103.

It is not an unprimeable number, because it can be changed into a prime (11345921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 630276 + ... + 630293.

It is an arithmetic number, because the mean of its divisors is an integer number (2731235).

Almost surely, 2^11345121 is an apocalyptic number.

It is an amenable number.

11345121 is a deficient number, since it is larger than the sum of its proper divisors (5042289).

11345121 is a wasteful number, since it uses less digits than its factorization.

11345121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260575 (or 1260572 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 11345121 is about 3368.2519205071. The cubic root of 11345121 is about 224.6999853239.

Adding to 11345121 its reverse (12154311), we get a palindrome (23499432).

The spelling of 11345121 in words is "eleven million, three hundred forty-five thousand, one hundred twenty-one".