12303500 has 48 divisors (see below), whose sum is σ = 29326752. Its totient is φ = 4472000.

The previous prime is 12303479. The next prime is 12303503. The reversal of 12303500 is 530321.

It is a super-2 number, since 2×12303500² = 302752224500000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12303503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4382 + ... + 6618.

It is an arithmetic number, because the mean of its divisors is an integer number (610974).

Almost surely, 2^12303500 is an apocalyptic number.

12303500 is a gapful number since it is divisible by the number (10) 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 12303500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14663376).

12303500 is an abundant number, since it is smaller than the sum of its proper divisors (17023252).

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

12303500 is a wasteful number, since it uses less digits than its factorization.

12303500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2267 (or 2255 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 12303500 is about 3507.6345305633. The cubic root of 12303500 is about 230.8569168199.

Adding to 12303500 its reverse (530321), we get a palindrome (12833821).

The spelling of 12303500 in words is "twelve million, three hundred three thousand, five hundred".