1313221295 has 4 divisors (see below), whose sum is σ = 1575865560. Its totient is φ = 1050577032.

The previous prime is 1313221289. The next prime is 1313221303. The reversal of 1313221295 is 5921223131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5921223131 = 17 ⋅348307243.

It is a cyclic number.

It is not a de Polignac number, because 1313221295 - 2¹⁴ = 1313204911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131322125 + ... + 131322134.

It is an arithmetic number, because the mean of its divisors is an integer number (393966390).

Almost surely, 2^1313221295 is an apocalyptic number.

1313221295 is a deficient number, since it is larger than the sum of its proper divisors (262644265).

1313221295 is an equidigital number, since it uses as much as digits as its factorization.

1313221295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262644264.

The product of its digits is 3240, while the sum is 29.

The square root of 1313221295 is about 36238.3953149143. The cubic root of 1313221295 is about 1095.0803149252.

The spelling of 1313221295 in words is "one billion, three hundred thirteen million, two hundred twenty-one thousand, two hundred ninety-five".