1320202120323 has 8 divisors (see below), whose sum is σ = 1760280069888. Its totient is φ = 880129458824.

The previous prime is 1320202120297. The next prime is 1320202120339. The reversal of 1320202120323 is 3230212020231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320202120323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1320202120323.

It is not an unprimeable number, because it can be changed into a prime (1320202120123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 697311 + ... + 1768232.

It is an arithmetic number, because the mean of its divisors is an integer number (220035008736).

Almost surely, 2^{1320202120323} is an apocalyptic number.

1320202120323 is a deficient number, since it is larger than the sum of its proper divisors (440077949565).

1320202120323 is a wasteful number, since it uses less digits than its factorization.

1320202120323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644033.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1320202120323 its reverse (3230212020231), we get a palindrome (4550414140554).

The spelling of 1320202120323 in words is "one trillion, three hundred twenty billion, two hundred two million, one hundred twenty thousand, three hundred twenty-three".