1303320201023 has 4 divisors (see below), whose sum is σ = 1304896163400. Its totient is φ = 1301744238648.

The previous prime is 1303320201019. The next prime is 1303320201049. The reversal of 1303320201023 is 3201020233031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1303320201023 - 2² = 1303320201019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303320200986 and 1303320201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303320201923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787979948 + ... + 787981601.

It is an arithmetic number, because the mean of its divisors is an integer number (326224040850).

Almost surely, 2^{1303320201023} is an apocalyptic number.

1303320201023 is a deficient number, since it is larger than the sum of its proper divisors (1575962377).

1303320201023 is an equidigital number, since it uses as much as digits as its factorization.

1303320201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575962376.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1303320201023 its reverse (3201020233031), we get a palindrome (4504340434054).

The spelling of 1303320201023 in words is "one trillion, three hundred three billion, three hundred twenty million, two hundred one thousand, twenty-three".