12030122320 has 160 divisors (see below), whose sum is σ = 29235834144. Its totient is φ = 4600627200.

The previous prime is 12030122311. The next prime is 12030122329. The reversal of 12030122320 is 2322103021.

It is an interprime number because it is at equal distance from previous prime (12030122311) and next prime (12030122329).

It can be written as a sum of positive squares in 16 ways, for example, as 4459034176 + 7571088144 = 66776^2 + 87012^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 12030122294 and 12030122303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030122329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49917400 + ... + 49917640.

Almost surely, 2^12030122320 is an apocalyptic number.

12030122320 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 12030122320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14617917072).

12030122320 is an abundant number, since it is smaller than the sum of its proper divisors (17205711824).

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

12030122320 is a wasteful number, since it uses less digits than its factorization.

12030122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12030122320 its reverse (2322103021), we get a palindrome (14352225341).

The spelling of 12030122320 in words is "twelve billion, thirty million, one hundred twenty-two thousand, three hundred twenty".