23003023500 has 144 divisors (see below), whose sum is σ = 72631278720. Its totient is φ = 6128697600.

The previous prime is 23003023487. The next prime is 23003023507. The reversal of 23003023500 is 532030032.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23003023507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9399277 + ... + 9401723.

It is an arithmetic number, because the mean of its divisors is an integer number (504383880).

Almost surely, 2^23003023500 is an apocalyptic number.

23003023500 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 23003023500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36315639360).

23003023500 is an abundant number, since it is smaller than the sum of its proper divisors (49628255220).

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

23003023500 is a wasteful number, since it uses less digits than its factorization.

23003023500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561 (or 4546 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

Adding to 23003023500 its reverse (532030032), we get a palindrome (23535053532).

The spelling of 23003023500 in words is "twenty-three billion, three million, twenty-three thousand, five hundred".