1303203213331 has 4 divisors (see below), whose sum is σ = 1348141255200. Its totient is φ = 1258265171464.

The previous prime is 1303203213317. The next prime is 1303203213383. The reversal of 1303203213331 is 1333123023031.

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 1303203213331 - 2¹¹ = 1303203211283 is a prime.

It is a super-3 number, since 3×1303203213331³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303203213296 and 1303203213305.

It is not an unprimeable number, because it can be changed into a prime (1303203213311) 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 3 ways as a sum of consecutive naturals, for example, 22469020891 + ... + 22469020948.

It is an arithmetic number, because the mean of its divisors is an integer number (337035313800).

Almost surely, 2^{1303203213331} is an apocalyptic number.

1303203213331 is a deficient number, since it is larger than the sum of its proper divisors (44938041869).

1303203213331 is an equidigital number, since it uses as much as digits as its factorization.

1303203213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44938041868.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1303203213331 its reverse (1333123023031), we get a palindrome (2636326236362).

The spelling of 1303203213331 in words is "one trillion, three hundred three billion, two hundred three million, two hundred thirteen thousand, three hundred thirty-one".