1344321043320 has 64 divisors (see below), whose sum is σ = 4062400866720. Its totient is φ = 355868923904.

The previous prime is 1344321043319. The next prime is 1344321043321. The reversal of 1344321043320 is 233401234431.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1344321043319) and next prime (1344321043321).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344321043321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40869237 + ... + 40902116.

Almost surely, 2^{1344321043320} is an apocalyptic number.

1344321043320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344321043320 is an abundant number, since it is smaller than the sum of its proper divisors (2718079823400).

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

1344321043320 is a wasteful number, since it uses less digits than its factorization.

1344321043320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81771504 (or 81771500 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 1344321043320 its reverse (233401234431), we get a palindrome (1577722277751).

The spelling of 1344321043320 in words is "one trillion, three hundred forty-four billion, three hundred twenty-one million, forty-three thousand, three hundred twenty".