211131120004 has 48 divisors (see below), whose sum is σ = 424068599808. Its totient is φ = 90098483328.

The previous prime is 211131119929. The next prime is 211131120007. The reversal of 211131120004 is 400021131112.

211131120004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 211131120004.

It is not an unprimeable number, because it can be changed into a prime (211131120007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6557754 + ... + 6589870.

It is an arithmetic number, because the mean of its divisors is an integer number (8834762496).

Almost surely, 2^211131120004 is an apocalyptic number.

It is an amenable number.

211131120004 is an abundant number, since it is smaller than the sum of its proper divisors (212937479804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211131120004 is a wasteful number, since it uses less digits than its factorization.

211131120004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33124 (or 33122 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211131120004 its reverse (400021131112), we get a palindrome (611152251116).

The spelling of 211131120004 in words is "two hundred eleven billion, one hundred thirty-one million, one hundred twenty thousand, four".