1323203033020 has 48 divisors (see below), whose sum is σ = 3040900597728. Its totient is φ = 479646844160.

The previous prime is 1323203032919. The next prime is 1323203033063. The reversal of 1323203033020 is 203303023231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1323203032982 and 1323203033000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9416947 + ... + 9556426.

It is an arithmetic number, because the mean of its divisors is an integer number (63352095786).

Almost surely, 2^{1323203033020} is an apocalyptic number.

1323203033020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323203033020 is an abundant number, since it is smaller than the sum of its proper divisors (1717697564708).

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

1323203033020 is a wasteful number, since it uses less digits than its factorization.

1323203033020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18973710 (or 18973708 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 1323203033020 its reverse (203303023231), we get a palindrome (1526506056251).

The spelling of 1323203033020 in words is "one trillion, three hundred twenty-three billion, two hundred three million, thirty-three thousand, twenty".