211040331321 has 32 divisors (see below), whose sum is σ = 300235264000. Its totient is φ = 131474648448.

The previous prime is 211040331301. The next prime is 211040331323. The reversal of 211040331321 is 123133040112.

It is not a de Polignac number, because 211040331321 - 2⁵ = 211040331289 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211040331323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4764645 + ... + 4808733.

It is an arithmetic number, because the mean of its divisors is an integer number (9382352000).

Almost surely, 2^211040331321 is an apocalyptic number.

It is an amenable number.

211040331321 is a deficient number, since it is larger than the sum of its proper divisors (89194932679).

211040331321 is a wasteful number, since it uses less digits than its factorization.

211040331321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45253.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211040331321 its reverse (123133040112), we get a palindrome (334173371433).

It can be divided in two parts, 211040 and 331321, that added together give a triangular number (542361 = T₁₀₄₁).

The spelling of 211040331321 in words is "two hundred eleven billion, forty million, three hundred thirty-one thousand, three hundred twenty-one".