11121001121 has 8 divisors (see below), whose sum is σ = 11170275840. Its totient is φ = 11071828768.

The previous prime is 11121001117. The next prime is 11121001123. The reversal of 11121001121 is 12110012111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11121001121 - 2² = 11121001117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121001123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196400 + ... + 246606.

It is an arithmetic number, because the mean of its divisors is an integer number (1396284480).

Almost surely, 2^11121001121 is an apocalyptic number.

It is an amenable number.

11121001121 is a deficient number, since it is larger than the sum of its proper divisors (49274719).

11121001121 is an equidigital number, since it uses as much as digits as its factorization.

11121001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51183.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11121001121 its reverse (12110012111), we get a palindrome (23231013232).

The spelling of 11121001121 in words is "eleven billion, one hundred twenty-one million, one thousand, one hundred twenty-one".