1303231103203 has 4 divisors (see below), whose sum is σ = 1303235381808. Its totient is φ = 1303226824600.

The previous prime is 1303231103201. The next prime is 1303231103257. The reversal of 1303231103203 is 3023011323031.

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 1303231103203 - 2¹ = 1303231103201 is a prime.

It is a super-2 number, since 2×1303231103203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303231103201) 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 3 ways as a sum of consecutive naturals, for example, 1644223 + ... + 2304328.

It is an arithmetic number, because the mean of its divisors is an integer number (325808845452).

Almost surely, 2^{1303231103203} is an apocalyptic number.

1303231103203 is a deficient number, since it is larger than the sum of its proper divisors (4278605).

1303231103203 is an equidigital number, since it uses as much as digits as its factorization.

1303231103203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278604.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1303231103203 its reverse (3023011323031), we get a palindrome (4326242426234).

The spelling of 1303231103203 in words is "one trillion, three hundred three billion, two hundred thirty-one million, one hundred three thousand, two hundred three".