11101120312121 has 8 divisors (see below), whose sum is σ = 12687246467904. Its totient is φ = 9515057112720.

The previous prime is 11101120312097. The next prime is 11101120312133. The reversal of 11101120312121 is 12121302110111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11101120312121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11101120312121.

It is not an unprimeable number, because it can be changed into a prime (11101120312141) 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, 15360635 + ... + 16067088.

It is an arithmetic number, because the mean of its divisors is an integer number (1585905808488).

Almost surely, 2^{11101120312121} is an apocalyptic number.

It is an amenable number.

11101120312121 is a deficient number, since it is larger than the sum of its proper divisors (1586126155783).

11101120312121 is an equidigital number, since it uses as much as digits as its factorization.

11101120312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31478191.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 11101120312121 its reverse (12121302110111), we get a palindrome (23222422422232).

The spelling of 11101120312121 in words is "eleven trillion, one hundred one billion, one hundred twenty million, three hundred twelve thousand, one hundred twenty-one".