12423122250 has 512 divisors, whose sum is σ = 41405644800. Its totient is φ = 2404512000.

The previous prime is 12423122213. The next prime is 12423122287. The reversal of 12423122250 is 5222132421.

It is an interprime number because it is at equal distance from previous prime (12423122213) and next prime (12423122287).

It is a self number, because there is not a number n which added to its sum of digits gives 12423122250.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 62427651 + ... + 62427849.

It is an arithmetic number, because the mean of its divisors is an integer number (80870400).

Almost surely, 2^12423122250 is an apocalyptic number.

12423122250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12423122250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20702822400).

12423122250 is an abundant number, since it is smaller than the sum of its proper divisors (28982522550).

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

12423122250 is a wasteful number, since it uses less digits than its factorization.

12423122250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 12423122250 its reverse (5222132421), we get a palindrome (17645254671).

The spelling of 12423122250 in words is "twelve billion, four hundred twenty-three million, one hundred twenty-two thousand, two hundred fifty".