211331313011 has 64 divisors (see below), whose sum is σ = 277729536000. Its totient is φ = 159485977728.

The previous prime is 211331313007. The next prime is 211331313071. The reversal of 211331313011 is 110313133112.

It is not a de Polignac number, because 211331313011 - 2² = 211331313007 is a prime.

It is a super-2 number, since 2×211331313011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211331313001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38866385 + ... + 38871821.

It is an arithmetic number, because the mean of its divisors is an integer number (4339524000).

Almost surely, 2^211331313011 is an apocalyptic number.

211331313011 is a deficient number, since it is larger than the sum of its proper divisors (66398222989).

211331313011 is a wasteful number, since it uses less digits than its factorization.

211331313011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5873 (or 5859 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 211331313011 its reverse (110313133112), we get a palindrome (321644446123).

The spelling of 211331313011 in words is "two hundred eleven billion, three hundred thirty-one million, three hundred thirteen thousand, eleven".