1313200241 has 4 divisors (see below), whose sum is σ = 1390447332. Its totient is φ = 1235953152.

The previous prime is 1313200223. The next prime is 1313200261. The reversal of 1313200241 is 1420023131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 940710241 + 372490000 = 30671^2 + 19300^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313200241 - 2¹⁴ = 1313183857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 77247073 = 1313200241 / (1 + 3 + 1 + 3 + 2 + 0 + 0 + 2 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313200261) 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, 38623520 + ... + 38623553.

It is an arithmetic number, because the mean of its divisors is an integer number (347611833).

Almost surely, 2^1313200241 is an apocalyptic number.

It is an amenable number.

1313200241 is a deficient number, since it is larger than the sum of its proper divisors (77247091).

1313200241 is an equidigital number, since it uses as much as digits as its factorization.

1313200241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77247090.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1313200241 is about 36238.1048207546. The cubic root of 1313200241 is about 1095.0744626635.

Adding to 1313200241 its reverse (1420023131), we get a palindrome (2733223372).

The spelling of 1313200241 in words is "one billion, three hundred thirteen million, two hundred thousand, two hundred forty-one".