1303424221220 has 96 divisors (see below), whose sum is σ = 3085457550336. Its totient is φ = 458220556800.

The previous prime is 1303424221217. The next prime is 1303424221223. The reversal of 1303424221220 is 221224243031.

It is an interprime number because it is at equal distance from previous prime (1303424221217) and next prime (1303424221223).

It is a self number, because there is not a number n which added to its sum of digits gives 1303424221220.

It is not an unprimeable number, because it can be changed into a prime (1303424221223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6703694 + ... + 6895386.

It is an arithmetic number, because the mean of its divisors is an integer number (32140182816).

Almost surely, 2^{1303424221220} is an apocalyptic number.

1303424221220 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 1303424221220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542728775168).

1303424221220 is an abundant number, since it is smaller than the sum of its proper divisors (1782033329116).

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

1303424221220 is a wasteful number, since it uses less digits than its factorization.

1303424221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192741 (or 192739 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1303424221220 its reverse (221224243031), we get a palindrome (1524648464251).

The spelling of 1303424221220 in words is "one trillion, three hundred three billion, four hundred twenty-four million, two hundred twenty-one thousand, two hundred twenty".