23210121000 has 512 divisors, whose sum is σ = 83026944000. Its totient is φ = 5346432000.

The previous prime is 23210120993. The next prime is 23210121041. The reversal of 23210121000 is 12101232.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 75602847 + ... + 75603153.

It is an arithmetic number, because the mean of its divisors is an integer number (162162000).

Almost surely, 2^23210121000 is an apocalyptic number.

23210121000 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 23210121000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41513472000).

23210121000 is an abundant number, since it is smaller than the sum of its proper divisors (59816823000).

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

23210121000 is a wasteful number, since it uses less digits than its factorization.

23210121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 23210121000 its reverse (12101232), we get a palindrome (23222222232).

The spelling of 23210121000 in words is "twenty-three billion, two hundred ten million, one hundred twenty-one thousand".