212110031311 has 4 divisors (see below), whose sum is σ = 212111621352. Its totient is φ = 212108441272.

The previous prime is 212110031281. The next prime is 212110031327. The reversal of 212110031311 is 113130011212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212110031311 - 2¹³ = 212110023119 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 (212110031381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574540 + ... + 868513.

It is an arithmetic number, because the mean of its divisors is an integer number (53027905338).

Almost surely, 2^212110031311 is an apocalyptic number.

212110031311 is a deficient number, since it is larger than the sum of its proper divisors (1590041).

212110031311 is a wasteful number, since it uses less digits than its factorization.

212110031311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590040.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 212110031311 its reverse (113130011212), we get a palindrome (325240042523).

The spelling of 212110031311 in words is "two hundred twelve billion, one hundred ten million, thirty-one thousand, three hundred eleven".