210030331211 has 4 divisors (see below), whose sum is σ = 210039376800. Its totient is φ = 210021285624.

The previous prime is 210030331117. The next prime is 210030331219. The reversal of 210030331211 is 112133030012.

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 210030331211 - 2³⁴ = 192850462027 is a prime.

It is a super-2 number, since 2×210030331211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210030331211.

It is not an unprimeable number, because it can be changed into a prime (210030331219) 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 3 ways as a sum of consecutive naturals, for example, 4487876 + ... + 4534433.

It is an arithmetic number, because the mean of its divisors is an integer number (52509844200).

Almost surely, 2^210030331211 is an apocalyptic number.

210030331211 is a deficient number, since it is larger than the sum of its proper divisors (9045589).

210030331211 is an equidigital number, since it uses as much as digits as its factorization.

210030331211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9045588.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 210030331211 its reverse (112133030012), we get a palindrome (322163361223).

The spelling of 210030331211 in words is "two hundred ten billion, thirty million, three hundred thirty-one thousand, two hundred eleven".