1340521433345 has 8 divisors (see below), whose sum is σ = 1617612456960. Its totient is φ = 1066425988720.

The previous prime is 1340521433323. The next prime is 1340521433351. The reversal of 1340521433345 is 5433341250431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340521433345 - 2²² = 1340517239041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1340521433299 and 1340521433308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748893761 + ... + 748895550.

It is an arithmetic number, because the mean of its divisors is an integer number (202201557120).

Almost surely, 2^{1340521433345} is an apocalyptic number.

It is an amenable number.

1340521433345 is a deficient number, since it is larger than the sum of its proper divisors (277091023615).

1340521433345 is a wasteful number, since it uses less digits than its factorization.

1340521433345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497789495.

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 1340521433345 its reverse (5433341250431), we get a palindrome (6773862683776).

The spelling of 1340521433345 in words is "one trillion, three hundred forty billion, five hundred twenty-one million, four hundred thirty-three thousand, three hundred forty-five".