1223143031320 has 192 divisors, whose sum is σ = 3220736463360. Its totient is φ = 416836627200.

The previous prime is 1223143031287. The next prime is 1223143031333. The reversal of 1223143031320 is 231303413221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 248049255 + ... + 248054185.

It is an arithmetic number, because the mean of its divisors is an integer number (16774669080).

Almost surely, 2^{1223143031320} is an apocalyptic number.

1223143031320 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 1223143031320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1610368231680).

1223143031320 is an abundant number, since it is smaller than the sum of its proper divisors (1997593432040).

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

1223143031320 is a wasteful number, since it uses less digits than its factorization.

1223143031320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694 (or 5683 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1223143031320 its reverse (231303413221), we get a palindrome (1454446444541).

The spelling of 1223143031320 in words is "one trillion, two hundred twenty-three billion, one hundred forty-three million, thirty-one thousand, three hundred twenty".