11183121 has 6 divisors (see below), whose sum is σ = 16153410. Its totient is φ = 7455408.

The previous prime is 11183101. The next prime is 11183131. The reversal of 11183121 is 12138111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9828225 + 1354896 = 3135^2 + 1164^2 .

It is not a de Polignac number, because 11183121 - 2⁹ = 11182609 is a prime.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 11183094 and 11183103.

It is not an unprimeable number, because it can be changed into a prime (11183101) 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, 621276 + ... + 621293.

It is an arithmetic number, because the mean of its divisors is an integer number (2692235).

Almost surely, 2^11183121 is an apocalyptic number.

It is an amenable number.

11183121 is a deficient number, since it is larger than the sum of its proper divisors (4970289).

11183121 is a wasteful number, since it uses less digits than its factorization.

11183121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242575 (or 1242572 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

The square root of 11183121 is about 3344.1173723421. The cubic root of 11183121 is about 223.6253369629.

The spelling of 11183121 in words is "eleven million, one hundred eighty-three thousand, one hundred twenty-one".