220323142243000 has 128 divisors (see below), whose sum is σ = 519079214160000. Its totient is φ = 87527167795200.

The previous prime is 220323142242883. The next prime is 220323142243013. The reversal of 220323142243000 is 342241323022.

It is a super-2 number, since 2×220323142243000² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220323142243000.

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, 1290701656 + ... + 1290872344.

It is an arithmetic number, because the mean of its divisors is an integer number (4055306360625).

Almost surely, 2^{220323142243000} is an apocalyptic number.

220323142243000 is a gapful number since it is divisible by the number (20) 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 220323142243000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259539607080000).

220323142243000 is an abundant number, since it is smaller than the sum of its proper divisors (298756071917000).

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

220323142243000 is a wasteful number, since it uses less digits than its factorization.

220323142243000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179522 (or 179508 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 220323142243000 its reverse (342241323022), we get a palindrome (220665383566022).

The spelling of 220323142243000 in words is "two hundred twenty trillion, three hundred twenty-three billion, one hundred forty-two million, two hundred forty-three thousand".