12323220030 has 96 divisors (see below), whose sum is σ = 35065686240. Its totient is φ = 2977827840.

The previous prime is 12323220029. The next prime is 12323220031. The reversal of 12323220030 is 3002232321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12323220029) and next prime (12323220031).

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

It is a junction number, because it is equal to n+sod(n) for n = 12323219985 and 12323220012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323220031) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 289986 + ... + 329754.

It is an arithmetic number, because the mean of its divisors is an integer number (365267565).

Almost surely, 2^12323220030 is an apocalyptic number.

12323220030 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 12323220030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17532843120).

12323220030 is an abundant number, since it is smaller than the sum of its proper divisors (22742466210).

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

12323220030 is a wasteful number, since it uses less digits than its factorization.

12323220030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40106 (or 40103 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 12323220030 its reverse (3002232321), we get a palindrome (15325452351).

The spelling of 12323220030 in words is "twelve billion, three hundred twenty-three million, two hundred twenty thousand, thirty".