11101303121 has 4 divisors (see below), whose sum is σ = 11153916144. Its totient is φ = 11048690100.

The previous prime is 11101303117. The next prime is 11101303139. The reversal of 11101303121 is 12130310111.

It is a happy number.

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: 12130310111 = 66271 ⋅183041.

It is a cyclic number.

It is not a de Polignac number, because 11101303121 - 2² = 11101303117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11101303096 and 11101303105.

It is not an unprimeable number, because it can be changed into a prime (11101303021) 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, 26306195 + ... + 26306616.

It is an arithmetic number, because the mean of its divisors is an integer number (2788479036).

Almost surely, 2^11101303121 is an apocalyptic number.

It is an amenable number.

11101303121 is a deficient number, since it is larger than the sum of its proper divisors (52613023).

11101303121 is an equidigital number, since it uses as much as digits as its factorization.

11101303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52613022.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11101303121 its reverse (12130310111), we get a palindrome (23231613232).

The spelling of 11101303121 in words is "eleven billion, one hundred one million, three hundred three thousand, one hundred twenty-one".