211132131131 has 4 divisors (see below), whose sum is σ = 211133334600. Its totient is φ = 211130927664.

The previous prime is 211132131103. The next prime is 211132131233. The reversal of 211132131131 is 131131231112.

211132131131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211132131131 is a prime.

It is a super-2 number, since 2×211132131131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211132131101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281921 + ... + 708338.

It is an arithmetic number, because the mean of its divisors is an integer number (52783333650).

Almost surely, 2^211132131131 is an apocalyptic number.

211132131131 is a deficient number, since it is larger than the sum of its proper divisors (1203469).

211132131131 is an equidigital number, since it uses as much as digits as its factorization.

211132131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203468.

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

Adding to 211132131131 its reverse (131131231112), we get a palindrome (342263362243).

The spelling of 211132131131 in words is "two hundred eleven billion, one hundred thirty-two million, one hundred thirty-one thousand, one hundred thirty-one".