1343321342440 has 64 divisors (see below), whose sum is σ = 3768278060160. Its totient is φ = 418697560320.

The previous prime is 1343321342431. The next prime is 1343321342477. The reversal of 1343321342440 is 442431233431.

It is a junction number, because it is equal to n+sod(n) for n = 1343321342396 and 1343321342405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218068567 + ... + 218074726.

It is an arithmetic number, because the mean of its divisors is an integer number (58879344690).

Almost surely, 2^{1343321342440} is an apocalyptic number.

1343321342440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1343321342440 is an abundant number, since it is smaller than the sum of its proper divisors (2424956717720).

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

1343321342440 is a wasteful number, since it uses less digits than its factorization.

1343321342440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436143322 (or 436143318 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 1343321342440 its reverse (442431233431), we get a palindrome (1785752575871).

The spelling of 1343321342440 in words is "one trillion, three hundred forty-three billion, three hundred twenty-one million, three hundred forty-two thousand, four hundred forty".