12303340143220 has 96 divisors (see below), whose sum is σ = 29700851281920. Its totient is φ = 4193624501760.

The previous prime is 12303340143179. The next prime is 12303340143253. The reversal of 12303340143220 is 2234104330321.

It is a happy number.

It is a super-2 number, since 2×12303340143220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43632846 + ... + 43913914.

It is an arithmetic number, because the mean of its divisors is an integer number (309383867520).

Almost surely, 2^{12303340143220} is an apocalyptic number.

12303340143220 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 12303340143220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14850425640960).

12303340143220 is an abundant number, since it is smaller than the sum of its proper divisors (17397511138700).

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

12303340143220 is a wasteful number, since it uses less digits than its factorization.

12303340143220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282913 (or 282911 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 12303340143220 its reverse (2234104330321), we get a palindrome (14537444473541).

The spelling of 12303340143220 in words is "twelve trillion, three hundred three billion, three hundred forty million, one hundred forty-three thousand, two hundred twenty".