211031133330 has 64 divisors (see below), whose sum is σ = 515181772800. Its totient is φ = 55307974080.

The previous prime is 211031133323. The next prime is 211031133331. The reversal of 211031133330 is 33331130112.

It is a junction number, because it is equal to n+sod(n) for n = 211031133297 and 211031133306.

It is not an unprimeable number, because it can be changed into a prime (211031133331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9048985 + ... + 9072275.

It is an arithmetic number, because the mean of its divisors is an integer number (8049715200).

Almost surely, 2^211031133330 is an apocalyptic number.

211031133330 is an abundant number, since it is smaller than the sum of its proper divisors (304150639470).

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

211031133330 is a wasteful number, since it uses less digits than its factorization.

211031133330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28479.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 211031133330 its reverse (33331130112), we get a palindrome (244362263442).

The spelling of 211031133330 in words is "two hundred eleven billion, thirty-one million, one hundred thirty-three thousand, three hundred thirty".