1305020352343 has 8 divisors (see below), whose sum is σ = 1382646138912. Its totient is φ = 1227490108416.

The previous prime is 1305020352341. The next prime is 1305020352359. The reversal of 1305020352343 is 3432530205031.

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

It is a cyclic number.

It is not a de Polignac number, because 1305020352343 - 2¹ = 1305020352341 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 (1305020352341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23857530 + ... + 23912167.

It is an arithmetic number, because the mean of its divisors is an integer number (172830767364).

Almost surely, 2^{1305020352343} is an apocalyptic number.

1305020352343 is a deficient number, since it is larger than the sum of its proper divisors (77625786569).

1305020352343 is a wasteful number, since it uses less digits than its factorization.

1305020352343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47771321.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 1305020352343 its reverse (3432530205031), we get a palindrome (4737550557374).

The spelling of 1305020352343 in words is "one trillion, three hundred five billion, twenty million, three hundred fifty-two thousand, three hundred forty-three".