23021223000 has 128 divisors (see below), whose sum is σ = 72192669120. Its totient is φ = 6107673600.

The previous prime is 23021222999. The next prime is 23021223031. The reversal of 23021223000 is 32212032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 571524 + ... + 610476.

Almost surely, 2^23021223000 is an apocalyptic number.

23021223000 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 23021223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36096334560).

23021223000 is an abundant number, since it is smaller than the sum of its proper divisors (49171446120).

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

23021223000 is a wasteful number, since it uses less digits than its factorization.

23021223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39174 (or 39160 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23021223000 its reverse (32212032), we get a palindrome (23053435032).

The spelling of 23021223000 in words is "twenty-three billion, twenty-one million, two hundred twenty-three thousand".