1305423110343 has 32 divisors (see below), whose sum is σ = 1903831299072. Its totient is φ = 789069052800.

The previous prime is 1305423110293. The next prime is 1305423110363. The reversal of 1305423110343 is 3430113245031.

It is a happy number.

It is not a de Polignac number, because 1305423110343 - 2²¹ = 1305421013191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1305423110343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305423110363) 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 31 ways as a sum of consecutive naturals, for example, 60743346 + ... + 60764832.

It is an arithmetic number, because the mean of its divisors is an integer number (59494728096).

Almost surely, 2^{1305423110343} is an apocalyptic number.

1305423110343 is a deficient number, since it is larger than the sum of its proper divisors (598408188729).

1305423110343 is a wasteful number, since it uses less digits than its factorization.

1305423110343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26295.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 1305423110343 its reverse (3430113245031), we get a palindrome (4735536355374).

The spelling of 1305423110343 in words is "one trillion, three hundred five billion, four hundred twenty-three million, one hundred ten thousand, three hundred forty-three".