211441231 has 8 divisors (see below), whose sum is σ = 220869504. Its totient is φ = 202032600.

The previous prime is 211441229. The next prime is 211441247. The reversal of 211441231 is 132144112.

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

It is a cyclic number.

It is not a de Polignac number, because 211441231 - 2¹ = 211441229 is a prime.

It is a super-2 number, since 2×211441231² = 89414788333590722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211441199 and 211441208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211441211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19800 + ... + 28546.

It is an arithmetic number, because the mean of its divisors is an integer number (27608688).

Almost surely, 2^211441231 is an apocalyptic number.

211441231 is a deficient number, since it is larger than the sum of its proper divisors (9428273).

211441231 is a wasteful number, since it uses less digits than its factorization.

211441231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9821.

The product of its digits is 192, while the sum is 19.

The square root of 211441231 is about 14541.0189120295. The cubic root of 211441231 is about 595.7488685307.

Adding to 211441231 its reverse (132144112), we get a palindrome (343585343).

The spelling of 211441231 in words is "two hundred eleven million, four hundred forty-one thousand, two hundred thirty-one".