23323021000 has 128 divisors (see below), whose sum is σ = 56169041760. Its totient is φ = 9060480000.

The previous prime is 23323020989. The next prime is 23323021009. The reversal of 23323021000 is 12032332.

It can be written as a sum of positive squares in 16 ways, for example, as 6836974596 + 16486046404 = 82686^2 + 128398^2 .

It is not an unprimeable number, because it can be changed into a prime (23323021009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5350822 + ... + 5355178.

Almost surely, 2^23323021000 is an apocalyptic number.

23323021000 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 23323021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28084520880).

23323021000 is an abundant number, since it is smaller than the sum of its proper divisors (32846020760).

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

23323021000 is a wasteful number, since it uses less digits than its factorization.

23323021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532 (or 4518 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 23323021000 its reverse (12032332), we get a palindrome (23335053332).

The spelling of 23323021000 in words is "twenty-three billion, three hundred twenty-three million, twenty-one thousand".