11684801121 has 24 divisors (see below), whose sum is σ = 18129857760. Its totient is φ = 6674637312.

The previous prime is 11684801111. The next prime is 11684801153. The reversal of 11684801121 is 12110848611.

It is not a de Polignac number, because 11684801121 - 2⁶ = 11684801057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11684801111) 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 23 ways as a sum of consecutive naturals, for example, 448470 + ... + 473808.

It is an arithmetic number, because the mean of its divisors is an integer number (755410740).

Almost surely, 2^11684801121 is an apocalyptic number.

It is an amenable number.

11684801121 is a deficient number, since it is larger than the sum of its proper divisors (6445056639).

11684801121 is a wasteful number, since it uses less digits than its factorization.

11684801121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28493 (or 28486 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 33.

The spelling of 11684801121 in words is "eleven billion, six hundred eighty-four million, eight hundred one thousand, one hundred twenty-one".