211313131211 has 8 divisors (see below), whose sum is σ = 260077700064. Its totient is φ = 167192807040.

The previous prime is 211313131187. The next prime is 211313131217. The reversal of 211313131211 is 112131313112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211313131211 - 2¹⁰ = 211313130187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211313131217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1161061070 + ... + 1161061251.

It is an arithmetic number, because the mean of its divisors is an integer number (32509712508).

Almost surely, 2^211313131211 is an apocalyptic number.

211313131211 is a deficient number, since it is larger than the sum of its proper divisors (48764568853).

211313131211 is a wasteful number, since it uses less digits than its factorization.

211313131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322122341.

The product of its digits is 108, while the sum is 20.

Adding to 211313131211 its reverse (112131313112), we get a palindrome (323444444323).

The spelling of 211313131211 in words is "two hundred eleven billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred eleven".