211020311034 has 24 divisors (see below), whose sum is σ = 492380726292. Its totient is φ = 64929326400.

The previous prime is 211020311023. The next prime is 211020311057. The reversal of 211020311034 is 430113020112.

211020311034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 210678246009 + 342065025 = 458997^2 + 18495^2 .

It is a super-2 number, since 2×211020311034² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211020310998 and 211020311016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 450897867 + ... + 450898334.

Almost surely, 2^211020311034 is an apocalyptic number.

211020311034 is an abundant number, since it is smaller than the sum of its proper divisors (281360415258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211020311034 is a wasteful number, since it uses less digits than its factorization.

211020311034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901796222 (or 901796219 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 211020311034 its reverse (430113020112), we get a palindrome (641133331146).

The spelling of 211020311034 in words is "two hundred eleven billion, twenty million, three hundred eleven thousand, thirty-four".