11133231121 has 8 divisors (see below), whose sum is σ = 11618671680. Its totient is φ = 10647906192.

The previous prime is 11133231119. The next prime is 11133231139. The reversal of 11133231121 is 12113233111.

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

It is a cyclic number.

It is not a de Polignac number, because 11133231121 - 2¹ = 11133231119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11133231191) 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, 209935 + ... + 257563.

It is an arithmetic number, because the mean of its divisors is an integer number (1452333960).

Almost surely, 2^11133231121 is an apocalyptic number.

It is an amenable number.

11133231121 is a deficient number, since it is larger than the sum of its proper divisors (485440559).

11133231121 is a wasteful number, since it uses less digits than its factorization.

11133231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57815.

The product of its digits is 108, while the sum is 19.

Adding to 11133231121 its reverse (12113233111), we get a palindrome (23246464232).

The spelling of 11133231121 in words is "eleven billion, one hundred thirty-three million, two hundred thirty-one thousand, one hundred twenty-one".