11004121 has 4 divisors (see below), whose sum is σ = 11028352. Its totient is φ = 10979892.

The previous prime is 11004109. The next prime is 11004127. The reversal of 11004121 is 12140011.

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: 12140011 = 13 ⋅933847.

It is a cyclic number.

It is not a de Polignac number, because 11004121 - 2⁵ = 11004089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11004098 and 11004107.

It is not an unprimeable number, because it can be changed into a prime (11004127) 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, 11421 + ... + 12346.

It is an arithmetic number, because the mean of its divisors is an integer number (2757088).

Almost surely, 2^11004121 is an apocalyptic number.

It is an amenable number.

11004121 is a deficient number, since it is larger than the sum of its proper divisors (24231).

11004121 is an equidigital number, since it uses as much as digits as its factorization.

11004121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24230.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 11004121 is about 3317.2459963048. The cubic root of 11004121 is about 222.4257783832.

Adding to 11004121 its reverse (12140011), we get a palindrome (23144132).

The spelling of 11004121 in words is "eleven million, four thousand, one hundred twenty-one".