211131130323 has 32 divisors (see below), whose sum is σ = 290617113600. Its totient is φ = 136268822016.

The previous prime is 211131130321. The next prime is 211131130333. The reversal of 211131130323 is 323031131112.

It is a happy number.

It is not a de Polignac number, because 211131130323 - 2¹ = 211131130321 is a prime.

It is a super-2 number, since 2×211131130323² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211131130323.

It is not an unprimeable number, because it can be changed into a prime (211131130321) 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, 9502315 + ... + 9524507.

It is an arithmetic number, because the mean of its divisors is an integer number (9081784800).

Almost surely, 2^211131130323 is an apocalyptic number.

211131130323 is a deficient number, since it is larger than the sum of its proper divisors (79485983277).

211131130323 is a wasteful number, since it uses less digits than its factorization.

211131130323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22971.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 211131130323 its reverse (323031131112), we get a palindrome (534162261435).

The spelling of 211131130323 in words is "two hundred eleven billion, one hundred thirty-one million, one hundred thirty thousand, three hundred twenty-three".