11052121 has 4 divisors (see below), whose sum is σ = 11532672. Its totient is φ = 10571572.

The previous prime is 11052113. The next prime is 11052131. The reversal of 11052121 is 12125011.

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 11052121 - 2³ = 11052113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11052101) 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, 240241 + ... + 240286.

It is an arithmetic number, because the mean of its divisors is an integer number (2883168).

Almost surely, 2^11052121 is an apocalyptic number.

It is an amenable number.

11052121 is a deficient number, since it is larger than the sum of its proper divisors (480551).

11052121 is an equidigital number, since it uses as much as digits as its factorization.

11052121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480550.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 11052121 is about 3324.4730409495. The cubic root of 11052121 is about 222.7487165299.

Adding to 11052121 its reverse (12125011), we get a palindrome (23177132).

The spelling of 11052121 in words is "eleven million, fifty-two thousand, one hundred twenty-one".