23212111000 has 128 divisors (see below), whose sum is σ = 58590604800. Its totient is φ = 8556556800.

The previous prime is 23212110989. The next prime is 23212111001. The reversal of 23212111000 is 11121232.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23212111001) 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 31 ways as a sum of consecutive naturals, for example, 11217966 + ... + 11220034.

It is an arithmetic number, because the mean of its divisors is an integer number (457739100).

Almost surely, 2^23212111000 is an apocalyptic number.

23212111000 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 23212111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29295302400).

23212111000 is an abundant number, since it is smaller than the sum of its proper divisors (35378493800).

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

23212111000 is a wasteful number, since it uses less digits than its factorization.

23212111000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2966 (or 2952 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 23212111000 its reverse (11121232), we get a palindrome (23223232232).

The spelling of 23212111000 in words is "twenty-three billion, two hundred twelve million, one hundred eleven thousand".