11103200121 has 12 divisors (see below), whose sum is σ = 16030656528. Its totient is φ = 6832738224.

The previous prime is 11103200111. The next prime is 11103200149. The reversal of 11103200121 is 12100230111.

It is not a de Polignac number, because 11103200121 - 2⁹ = 11103199609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11103200097 and 11103200106.

It is not an unprimeable number, because it can be changed into a prime (11103200111) 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 11 ways as a sum of consecutive naturals, for example, 10949395 + ... + 10950408.

It is an arithmetic number, because the mean of its divisors is an integer number (1335888044).

Almost surely, 2^11103200121 is an apocalyptic number.

It is an amenable number.

11103200121 is a deficient number, since it is larger than the sum of its proper divisors (4927456407).

11103200121 is a wasteful number, since it uses less digits than its factorization.

11103200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21899832 (or 21899819 counting only the distinct ones).

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

Adding to 11103200121 its reverse (12100230111), we get a palindrome (23203430232).

The spelling of 11103200121 in words is "eleven billion, one hundred three million, two hundred thousand, one hundred twenty-one".