211323312300 has 144 divisors (see below), whose sum is σ = 639858546432. Its totient is φ = 53746809600.

The previous prime is 211323312257. The next prime is 211323312311. The reversal of 211323312300 is 3213323112.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2350170 + ... + 2438430.

It is an arithmetic number, because the mean of its divisors is an integer number (4443462128).

Almost surely, 2^211323312300 is an apocalyptic number.

211323312300 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 211323312300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319929273216).

211323312300 is an abundant number, since it is smaller than the sum of its proper divisors (428535234132).

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

211323312300 is a wasteful number, since it uses less digits than its factorization.

211323312300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88648 (or 88641 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 211323312300 its reverse (3213323112), we get a palindrome (214536635412).

The spelling of 211323312300 in words is "two hundred eleven billion, three hundred twenty-three million, three hundred twelve thousand, three hundred".