1343105443240 has 128 divisors (see below), whose sum is σ = 3434866974720. Its totient is φ = 468229305600.

The previous prime is 1343105443237. The next prime is 1343105443289. The reversal of 1343105443240 is 423445013431.

It is a junction number, because it is equal to n+sod(n) for n = 1343105443196 and 1343105443205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 999349 + ... + 1919611.

It is an arithmetic number, because the mean of its divisors is an integer number (26834898240).

Almost surely, 2^{1343105443240} is an apocalyptic number.

1343105443240 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 1343105443240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1717433487360).

1343105443240 is an abundant number, since it is smaller than the sum of its proper divisors (2091761531480).

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

1343105443240 is a wasteful number, since it uses less digits than its factorization.

1343105443240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920423 (or 920419 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

The spelling of 1343105443240 in words is "one trillion, three hundred forty-three billion, one hundred five million, four hundred forty-three thousand, two hundred forty".