211331201004 has 144 divisors (see below), whose sum is σ = 680184400896. Its totient is φ = 53723289600.

The previous prime is 211331200979. The next prime is 211331201021. The reversal of 211331201004 is 400102133112.

211331201004 is a `hidden beast` number, since 211 + 331 + 20 + 100 + 4 = 666.

211331201004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 680757 + ... + 941324.

It is an arithmetic number, because the mean of its divisors is an integer number (4723502784).

Almost surely, 2^211331201004 is an apocalyptic number.

It is an amenable number.

211331201004 is an abundant number, since it is smaller than the sum of its proper divisors (468853199892).

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

211331201004 is a wasteful number, since it uses less digits than its factorization.

211331201004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622156 (or 1622151 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 211331201004 its reverse (400102133112), we get a palindrome (611433334116).

The spelling of 211331201004 in words is "two hundred eleven billion, three hundred thirty-one million, two hundred one thousand, four".