1313221132303 has 2 divisors, whose sum is σ = 1313221132304. Its totient is φ = 1313221132302.

The previous prime is 1313221132277. The next prime is 1313221132337. The reversal of 1313221132303 is 3032311223131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313221132303 - 2⁹ = 1313221131791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313321132303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656610566151 + 656610566152.

It is an arithmetic number, because the mean of its divisors is an integer number (656610566152).

Almost surely, 2^{1313221132303} is an apocalyptic number.

1313221132303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313221132303 is an equidigital number, since it uses as much as digits as its factorization.

1313221132303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1313221132303 its reverse (3032311223131), we get a palindrome (4345532355434).

The spelling of 1313221132303 in words is "one trillion, three hundred thirteen billion, two hundred twenty-one million, one hundred thirty-two thousand, three hundred three".