211000440231 has 12 divisors (see below), whose sum is σ = 348318187152. Its totient is φ = 120571680096.

The previous prime is 211000440227. The next prime is 211000440253. The reversal of 211000440231 is 132044000112.

It is not a de Polignac number, because 211000440231 - 2² = 211000440227 is a prime.

It is a super-2 number, since 2×211000440231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211000440031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1674606606 + ... + 1674606731.

It is an arithmetic number, because the mean of its divisors is an integer number (29026515596).

Almost surely, 2^211000440231 is an apocalyptic number.

211000440231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211000440231 is a deficient number, since it is larger than the sum of its proper divisors (137317746921).

211000440231 is a wasteful number, since it uses less digits than its factorization.

211000440231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349213350 (or 3349213347 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 211000440231 its reverse (132044000112), we get a palindrome (343044440343).

The spelling of 211000440231 in words is "two hundred eleven billion, four hundred forty thousand, two hundred thirty-one".