1313322013 has 2 divisors, whose sum is σ = 1313322014. Its totient is φ = 1313322012.

The previous prime is 1313322001. The next prime is 1313322019. The reversal of 1313322013 is 3102233131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1191837529 + 121484484 = 34523^2 + 11022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313322013 - 2⁵ = 1313321981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313322019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656661006 + 656661007.

It is an arithmetic number, because the mean of its divisors is an integer number (656661007).

Almost surely, 2^1313322013 is an apocalyptic number.

It is an amenable number.

1313322013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313322013 is an equidigital number, since it uses as much as digits as its factorization.

1313322013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1313322013 is about 36239.7849469337. The cubic root of 1313322013 is about 1095.1083100748.

Adding to 1313322013 its reverse (3102233131), we get a palindrome (4415555144).

The spelling of 1313322013 in words is "one billion, three hundred thirteen million, three hundred twenty-two thousand, thirteen".