1344213311340 has 96 divisors (see below), whose sum is σ = 3845316787200. Its totient is φ = 350698830336.

The previous prime is 1344213311339. The next prime is 1344213311341. The reversal of 1344213311340 is 431133124431.

It is an interprime number because it is at equal distance from previous prime (1344213311339) and next prime (1344213311341).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1344213311298 and 1344213311307.

It is not an unprimeable number, because it can be changed into a prime (1344213311341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7562811 + ... + 7738509.

It is an arithmetic number, because the mean of its divisors is an integer number (40055383200).

Almost surely, 2^{1344213311340} is an apocalyptic number.

1344213311340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1344213311340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1922658393600).

1344213311340 is an abundant number, since it is smaller than the sum of its proper divisors (2501103475860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1344213311340 is a wasteful number, since it uses less digits than its factorization.

1344213311340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178471 (or 178469 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 1344213311340 its reverse (431133124431), we get a palindrome (1775346435771).

The spelling of 1344213311340 in words is "one trillion, three hundred forty-four billion, two hundred thirteen million, three hundred eleven thousand, three hundred forty".