211001203110231 has 16 divisors (see below), whose sum is σ = 313136133016800. Its totient is φ = 140423677622784.

The previous prime is 211001203110223. The next prime is 211001203110233. The reversal of 211001203110231 is 132011302100112.

211001203110231 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 0 + 120 + 311 + 0 + 231 = 666.

It is not a de Polignac number, because 211001203110231 - 2³ = 211001203110223 is a prime.

It is a super-2 number, since 2×211001203110231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211001203110233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6771959616 + ... + 6771990773.

It is an arithmetic number, because the mean of its divisors is an integer number (19571008313550).

Almost surely, 2^{211001203110231} is an apocalyptic number.

211001203110231 is a deficient number, since it is larger than the sum of its proper divisors (102134929906569).

211001203110231 is a wasteful number, since it uses less digits than its factorization.

211001203110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13543950975 (or 13543950969 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211001203110231 its reverse (132011302100112), we get a palindrome (343012505210343).

The spelling of 211001203110231 in words is "two hundred eleven trillion, one billion, two hundred three million, one hundred ten thousand, two hundred thirty-one".