11102130121 has 4 divisors (see below), whose sum is σ = 11102517712. Its totient is φ = 11101742532.

The previous prime is 11102130079. The next prime is 11102130157. The reversal of 11102130121 is 12103120111.

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.

It is a cyclic number.

It is not a de Polignac number, because 11102130121 - 2¹³ = 11102121929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11102130821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147075 + ... + 209368.

It is an arithmetic number, because the mean of its divisors is an integer number (2775629428).

Almost surely, 2^11102130121 is an apocalyptic number.

It is an amenable number.

11102130121 is a deficient number, since it is larger than the sum of its proper divisors (387591).

11102130121 is an equidigital number, since it uses as much as digits as its factorization.

11102130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387590.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11102130121 its reverse (12103120111), we get a palindrome (23205250232).

The spelling of 11102130121 in words is "eleven billion, one hundred two million, one hundred thirty thousand, one hundred twenty-one".