212031113311 has 6 divisors (see below), whose sum is σ = 221650672880. Its totient is φ = 202812368748.

The previous prime is 212031113267. The next prime is 212031113353. The reversal of 212031113311 is 113311130212.

It is not a de Polignac number, because 212031113311 - 2¹¹ = 212031111263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212031173311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 200406951 + ... + 200408008.

Almost surely, 2^212031113311 is an apocalyptic number.

212031113311 is a deficient number, since it is larger than the sum of its proper divisors (9619559569).

212031113311 is an equidigital number, since it uses as much as digits as its factorization.

212031113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400815005 (or 400814982 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 212031113311 its reverse (113311130212), we get a palindrome (325342243523).

The spelling of 212031113311 in words is "two hundred twelve billion, thirty-one million, one hundred thirteen thousand, three hundred eleven".