11071121 has 4 divisors (see below), whose sum is σ = 11204592. Its totient is φ = 10937652.

The previous prime is 11071057. The next prime is 11071133. The reversal of 11071121 is 12117011.

11071121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11071121 - 2⁶ = 11071057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11071096 and 11071105.

It is not an unprimeable number, because it can be changed into a prime (11071171) 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, 66611 + ... + 66776.

It is an arithmetic number, because the mean of its divisors is an integer number (2801148).

Almost surely, 2^11071121 is an apocalyptic number.

It is an amenable number.

11071121 is a deficient number, since it is larger than the sum of its proper divisors (133471).

11071121 is an equidigital number, since it uses as much as digits as its factorization.

11071121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133470.

The product of its (nonzero) digits is 14, while the sum is 14.

The square root of 11071121 is about 3327.3294096016. The cubic root of 11071121 is about 222.8762879008.

Adding to 11071121 its reverse (12117011), we get a palindrome (23188132).

The spelling of 11071121 in words is "eleven million, seventy-one thousand, one hundred twenty-one".