1320231203313 has 16 divisors (see below), whose sum is σ = 1920716727552. Its totient is φ = 799981610000.

The previous prime is 1320231203297. The next prime is 1320231203353. The reversal of 1320231203313 is 3133021320231.

It is a cyclic number.

It is not a de Polignac number, because 1320231203313 - 2⁴ = 1320231203297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320231203353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3793623 + ... + 4126988.

It is an arithmetic number, because the mean of its divisors is an integer number (120044795472).

Almost surely, 2^{1320231203313} is an apocalyptic number.

It is an amenable number.

1320231203313 is a deficient number, since it is larger than the sum of its proper divisors (600485524239).

1320231203313 is a wasteful number, since it uses less digits than its factorization.

1320231203313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7925676.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1320231203313 its reverse (3133021320231), we get a palindrome (4453252523544).

The spelling of 1320231203313 in words is "one trillion, three hundred twenty billion, two hundred thirty-one million, two hundred three thousand, three hundred thirteen".