11133320121 has 48 divisors (see below), whose sum is σ = 20291281920. Its totient is φ = 5713832160.

The previous prime is 11133320117. The next prime is 11133320153. The reversal of 11133320121 is 12102333111.

11133320121 is a `hidden beast` number, since 111 + 333 + 201 + 21 = 666.

It is not a de Polignac number, because 11133320121 - 2² = 11133320117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11133320094 and 11133320103.

It is not an unprimeable number, because it can be changed into a prime (11133320171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39261 + ... + 154298.

It is an arithmetic number, because the mean of its divisors is an integer number (422735040).

Almost surely, 2^11133320121 is an apocalyptic number.

11133320121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11133320121 is a deficient number, since it is larger than the sum of its proper divisors (9157961799).

11133320121 is a wasteful number, since it uses less digits than its factorization.

11133320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193666 (or 193663 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11133320121 its reverse (12102333111), we get a palindrome (23235653232).

The spelling of 11133320121 in words is "eleven billion, one hundred thirty-three million, three hundred twenty thousand, one hundred twenty-one".