12143220431100 has 288 divisors, whose sum is σ = 41285037588480. Its totient is φ = 2724985824000.

The previous prime is 12143220431081. The next prime is 12143220431101. The reversal of 12143220431100 is 113402234121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12143220431101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 227580 + ... + 4933379.

It is an arithmetic number, because the mean of its divisors is an integer number (143350824960).

Almost surely, 2^{12143220431100} is an apocalyptic number.

12143220431100 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 12143220431100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20642518794240).

12143220431100 is an abundant number, since it is smaller than the sum of its proper divisors (29141817157380).

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

12143220431100 is a wasteful number, since it uses less digits than its factorization.

12143220431100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5161041 (or 5161034 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12143220431100 its reverse (113402234121), we get a palindrome (12256622665221).

The spelling of 12143220431100 in words is "twelve trillion, one hundred forty-three billion, two hundred twenty million, four hundred thirty-one thousand, one hundred".