1323133120020 has 48 divisors (see below), whose sum is σ = 3712138174080. Its totient is φ = 352134028416.

The previous prime is 1323133120007. The next prime is 1323133120031. The reversal of 1323133120020 is 200213313231.

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, 21890515 + ... + 21950874.

It is an arithmetic number, because the mean of its divisors is an integer number (77336211960).

Almost surely, 2^{1323133120020} is an apocalyptic number.

1323133120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323133120020 is an abundant number, since it is smaller than the sum of its proper divisors (2389005054060).

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

1323133120020 is a wasteful number, since it uses less digits than its factorization.

1323133120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43841904 (or 43841902 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1323133120020 its reverse (200213313231), we get a palindrome (1523346433251).

The spelling of 1323133120020 in words is "one trillion, three hundred twenty-three billion, one hundred thirty-three million, one hundred twenty thousand, twenty".