211230300000 has 144 divisors (see below), whose sum is σ = 693056047824. Its totient is φ = 56328000000.

The previous prime is 211230299981. The next prime is 211230300067. The reversal of 211230300000 is 3032112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52051 + ... + 652050.

It is an arithmetic number, because the mean of its divisors is an integer number (4812889221).

Almost surely, 2^211230300000 is an apocalyptic number.

211230300000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211230300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346528023912).

211230300000 is an abundant number, since it is smaller than the sum of its proper divisors (481825747824).

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

211230300000 is an frugal number, since it uses more digits than its factorization.

211230300000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704139 (or 704111 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 211230300000 its reverse (3032112), we get a palindrome (211233332112).

The spelling of 211230300000 in words is "two hundred eleven billion, two hundred thirty million, three hundred thousand".