211323000000 has 784 divisors, whose sum is σ = 828664392960. Its totient is φ = 46502400000.

The previous prime is 211322999981. The next prime is 211323000011. The reversal of 211323000000 is 323112.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 211323000000.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 608999827 + ... + 609000173.

Almost surely, 2^211323000000 is an apocalyptic number.

211323000000 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 211323000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414332196480).

211323000000 is an abundant number, since it is smaller than the sum of its proper divisors (617341392960).

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

211323000000 is an frugal number, since it uses more digits than its factorization.

211323000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 393 counting only the distinct ones).

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

Adding to 211323000000 its reverse (323112), we get a palindrome (211323323112).

The spelling of 211323000000 in words is "two hundred eleven billion, three hundred twenty-three million", and thus it is an aban number.