1344220313213 has 4 divisors (see below), whose sum is σ = 1344226668288. Its totient is φ = 1344213958140.

The previous prime is 1344220313209. The next prime is 1344220313323. The reversal of 1344220313213 is 3123130224431.

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.

It is a cyclic number.

It is not a de Polignac number, because 1344220313213 - 2² = 1344220313209 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 (1344220313113) 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, 2848931 + ... + 3287072.

It is an arithmetic number, because the mean of its divisors is an integer number (336056667072).

Almost surely, 2^{1344220313213} is an apocalyptic number.

It is an amenable number.

1344220313213 is a deficient number, since it is larger than the sum of its proper divisors (6355075).

1344220313213 is an equidigital number, since it uses as much as digits as its factorization.

1344220313213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355074.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 1344220313213 its reverse (3123130224431), we get a palindrome (4467350537644).

The spelling of 1344220313213 in words is "one trillion, three hundred forty-four billion, two hundred twenty million, three hundred thirteen thousand, two hundred thirteen".