1340331321413 has 16 divisors (see below), whose sum is σ = 1605313708800. Its totient is φ = 1117805261328.

The previous prime is 1340331321391. The next prime is 1340331321431. The reversal of 1340331321413 is 3141231330431.

It is not a de Polignac number, because 1340331321413 - 2³⁴ = 1323151452229 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 (1340331321463) 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, 52793681 + ... + 52819062.

It is an arithmetic number, because the mean of its divisors is an integer number (100332106800).

Almost surely, 2^{1340331321413} is an apocalyptic number.

It is an amenable number.

1340331321413 is a deficient number, since it is larger than the sum of its proper divisors (264982387387).

1340331321413 is an equidigital number, since it uses as much as digits as its factorization.

1340331321413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105612801 (or 105612787 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 1340331321413 its reverse (3141231330431), we get a palindrome (4481562651844).

The spelling of 1340331321413 in words is "one trillion, three hundred forty billion, three hundred thirty-one million, three hundred twenty-one thousand, four hundred thirteen".