11261121 has 4 divisors (see below), whose sum is σ = 15014832. Its totient is φ = 7507412.

The previous prime is 11261119. The next prime is 11261137. The reversal of 11261121 is 12116211.

It is a happy number.

11261121 is digitally balanced in base 2 and base 4, because in such bases 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, and also an emirpimes, since its reverse is a distinct semiprime: 12116211 = 3 ⋅4038737.

It is a cyclic number.

It is not a de Polignac number, because 11261121 - 2¹ = 11261119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11261121.

It is not an unprimeable number, because it can be changed into a prime (11261171) 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, 1876851 + ... + 1876856.

It is an arithmetic number, because the mean of its divisors is an integer number (3753708).

Almost surely, 2^11261121 is an apocalyptic number.

It is an amenable number.

11261121 is a deficient number, since it is larger than the sum of its proper divisors (3753711).

11261121 is an equidigital number, since it uses as much as digits as its factorization.

11261121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753710.

The product of its digits is 24, while the sum is 15.

The square root of 11261121 is about 3355.7593775478. The cubic root of 11261121 is about 224.1440466451.

Adding to 11261121 its reverse (12116211), we get a palindrome (23377332).

The spelling of 11261121 in words is "eleven million, two hundred sixty-one thousand, one hundred twenty-one".