211132131 has 24 divisors (see below), whose sum is σ = 334448640. Its totient is φ = 118076112.

The previous prime is 211132127. The next prime is 211132139. The reversal of 211132131 is 131231112.

It is a happy number.

It is not a de Polignac number, because 211132131 - 2² = 211132127 is a prime.

It is a super-2 number, since 2×211132131² = 89153553481202322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211132131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211132139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8371 + ... + 22188.

It is an arithmetic number, because the mean of its divisors is an integer number (13935360).

Almost surely, 2^211132131 is an apocalyptic number.

211132131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211132131 is a deficient number, since it is larger than the sum of its proper divisors (123316509).

211132131 is a wasteful number, since it uses less digits than its factorization.

211132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30623 (or 30616 counting only the distinct ones).

The product of its digits is 36, while the sum is 15.

The square root of 211132131 is about 14530.3864711163. The cubic root of 211132131 is about 595.4584241049.

Adding to 211132131 its reverse (131231112), we get a palindrome (342363243).

The spelling of 211132131 in words is "two hundred eleven million, one hundred thirty-two thousand, one hundred thirty-one".