1341321005 has 4 divisors (see below), whose sum is σ = 1609585212. Its totient is φ = 1073056800.

The previous prime is 1341321001. The next prime is 1341321019. The reversal of 1341321005 is 5001231431.

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 558944164 + 782376841 = 23642^2 + 27971^2 .

It is not a de Polignac number, because 1341321005 - 2² = 1341321001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341321001) 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, 134132096 + ... + 134132105.

It is an arithmetic number, because the mean of its divisors is an integer number (402396303).

Almost surely, 2^1341321005 is an apocalyptic number.

It is an amenable number.

1341321005 is a deficient number, since it is larger than the sum of its proper divisors (268264207).

1341321005 is an equidigital number, since it uses as much as digits as its factorization.

1341321005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268264206.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1341321005 is about 36624.0495439813. The cubic root of 1341321005 is about 1102.8359343975.

Adding to 1341321005 its reverse (5001231431), we get a palindrome (6342552436).

The spelling of 1341321005 in words is "one billion, three hundred forty-one million, three hundred twenty-one thousand, five".