1303231320023 has 4 divisors (see below), whose sum is σ = 1303233683280. Its totient is φ = 1303228956768.

The previous prime is 1303231319993. The next prime is 1303231320029. The reversal of 1303231320023 is 3200231323031.

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 1303231320023 - 2²⁸ = 1302962884567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303231320029) 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, 133343 + ... + 1619951.

It is an arithmetic number, because the mean of its divisors is an integer number (325808420820).

Almost surely, 2^{1303231320023} is an apocalyptic number.

1303231320023 is a deficient number, since it is larger than the sum of its proper divisors (2363257).

1303231320023 is an equidigital number, since it uses as much as digits as its factorization.

1303231320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363256.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 1303231320023 its reverse (3200231323031), we get a palindrome (4503462643054).

The spelling of 1303231320023 in words is "one trillion, three hundred three billion, two hundred thirty-one million, three hundred twenty thousand, twenty-three".