1223303563020 has 192 divisors, whose sum is σ = 4385859480576. Its totient is φ = 247322833920.

The previous prime is 1223303563019. The next prime is 1223303563021. The reversal of 1223303563020 is 203653033221.

It is an interprime number because it is at equal distance from previous prime (1223303563019) and next prime (1223303563021).

It is a super-2 number, since 2×1223303563020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1223303563021) 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 63 ways as a sum of consecutive naturals, for example, 3407227 + ... + 3749106.

It is an arithmetic number, because the mean of its divisors is an integer number (22843018128).

Almost surely, 2^{1223303563020} is an apocalyptic number.

1223303563020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223303563020 is an abundant number, since it is smaller than the sum of its proper divisors (3162555917556).

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

1223303563020 is a wasteful number, since it uses less digits than its factorization.

1223303563020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7156400 (or 7156398 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 1223303563020 its reverse (203653033221), we get a palindrome (1426956596241).

The spelling of 1223303563020 in words is "one trillion, two hundred twenty-three billion, three hundred three million, five hundred sixty-three thousand, twenty".