1313221301 has 4 divisors (see below), whose sum is σ = 1500824352. Its totient is φ = 1125618252.

The previous prime is 1313221289. The next prime is 1313221303. The reversal of 1313221301 is 1031223131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1031223131 = 307 ⋅3359033.

It is a cyclic number.

It is not a de Polignac number, because 1313221301 - 2¹⁴ = 1313204917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313221301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313221303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93801515 + ... + 93801528.

It is an arithmetic number, because the mean of its divisors is an integer number (375206088).

Almost surely, 2^1313221301 is an apocalyptic number.

It is an amenable number.

1313221301 is a deficient number, since it is larger than the sum of its proper divisors (187603051).

1313221301 is an equidigital number, since it uses as much as digits as its factorization.

1313221301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187603050.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1313221301 is about 36238.3953976994. The cubic root of 1313221301 is about 1095.0803165930.

Adding to 1313221301 its reverse (1031223131), we get a palindrome (2344444432).

The spelling of 1313221301 in words is "one billion, three hundred thirteen million, two hundred twenty-one thousand, three hundred one".