211131100130031 has 6 divisors (see below), whose sum is σ = 304967144632280. Its totient is φ = 140754066753348.

The previous prime is 211131100129861. The next prime is 211131100130033. The reversal of 211131100130031 is 130031001131112.

211131100130031 is a `hidden beast` number, since 21 + 1 + 1 + 311 + 0 + 0 + 1 + 300 + 31 = 666.

It is not a de Polignac number, because 211131100130031 - 2¹⁰ = 211131100129007 is a prime.

It is a super-2 number, since 2×211131100130031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211131100129986 and 211131100130013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211131100130033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11729505562771 + ... + 11729505562788.

Almost surely, 2^{211131100130031} is an apocalyptic number.

211131100130031 is a deficient number, since it is larger than the sum of its proper divisors (93836044502249).

211131100130031 is a wasteful number, since it uses less digits than its factorization.

211131100130031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23459011125565 (or 23459011125562 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 211131100130031 its reverse (130031001131112), we get a palindrome (341162101261143).

The spelling of 211131100130031 in words is "two hundred eleven trillion, one hundred thirty-one billion, one hundred million, one hundred thirty thousand, thirty-one".