1303112303221 has 4 divisors (see below), whose sum is σ = 1303370913600. Its totient is φ = 1302853692844.

The previous prime is 1303112303183. The next prime is 1303112303239. The reversal of 1303112303221 is 1223032113031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1303112303221 - 2⁷ = 1303112303093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303112303192 and 1303112303201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303112309221) 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, 129297631 + ... + 129307708.

It is an arithmetic number, because the mean of its divisors is an integer number (325842728400).

Almost surely, 2^{1303112303221} is an apocalyptic number.

It is an amenable number.

1303112303221 is a deficient number, since it is larger than the sum of its proper divisors (258610379).

1303112303221 is an equidigital number, since it uses as much as digits as its factorization.

1303112303221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258610378.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1303112303221 its reverse (1223032113031), we get a palindrome (2526144416252).

The spelling of 1303112303221 in words is "one trillion, three hundred three billion, one hundred twelve million, three hundred three thousand, two hundred twenty-one".