11310121 has 4 divisors (see below), whose sum is σ = 11420032. Its totient is φ = 11200212.

The previous prime is 11310119. The next prime is 11310139. The reversal of 11310121 is 12101311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12101311 = 71 ⋅170441.

It is a cyclic number.

It is not a de Polignac number, because 11310121 - 2¹ = 11310119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11310098 and 11310107.

It is not an unprimeable number, because it can be changed into a prime (11310191) 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, 54801 + ... + 55006.

It is an arithmetic number, because the mean of its divisors is an integer number (2855008).

Almost surely, 2^11310121 is an apocalyptic number.

It is an amenable number.

11310121 is a deficient number, since it is larger than the sum of its proper divisors (109911).

11310121 is a wasteful number, since it uses less digits than its factorization.

11310121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109910.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 11310121 is about 3363.0523338182. The cubic root of 11310121 is about 224.4686788215.

Adding to 11310121 its reverse (12101311), we get a palindrome (23411432).

The spelling of 11310121 in words is "eleven million, three hundred ten thousand, one hundred twenty-one".