11121347 has 4 divisors (see below), whose sum is σ = 11219880. Its totient is φ = 11022816.

The previous prime is 11121329. The next prime is 11121353. The reversal of 11121347 is 74312111.

It is a happy number.

11121347 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 an emirpimes, since its reverse is a distinct semiprime: 74312111 = 149 ⋅498739.

It is a cyclic number.

It is not a de Polignac number, because 11121347 - 2¹⁰ = 11120323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121307) 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, 49097 + ... + 49322.

It is an arithmetic number, because the mean of its divisors is an integer number (2804970).

Almost surely, 2^11121347 is an apocalyptic number.

11121347 is a deficient number, since it is larger than the sum of its proper divisors (98533).

11121347 is an equidigital number, since it uses as much as digits as its factorization.

11121347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98532.

The product of its digits is 168, while the sum is 20.

The square root of 11121347 is about 3334.8683632192. The cubic root of 11121347 is about 223.2128180761.

Adding to 11121347 its reverse (74312111), we get a palindrome (85433458).

The spelling of 11121347 in words is "eleven million, one hundred twenty-one thousand, three hundred forty-seven".