1305420424003 has 4 divisors (see below), whose sum is σ = 1305426500680. Its totient is φ = 1305414347328.

The previous prime is 1305420423947. The next prime is 1305420424039. The reversal of 1305420424003 is 3004240245031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1305420424003 - 2³⁷ = 1167981470531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305420424073) 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 3 ways as a sum of consecutive naturals, for example, 2703825 + ... + 3149842.

It is an arithmetic number, because the mean of its divisors is an integer number (326356625170).

Almost surely, 2^{1305420424003} is an apocalyptic number.

1305420424003 is a deficient number, since it is larger than the sum of its proper divisors (6076677).

1305420424003 is an equidigital number, since it uses as much as digits as its factorization.

1305420424003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6076676.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 1305420424003 its reverse (3004240245031), we get a palindrome (4309660669034).

The spelling of 1305420424003 in words is "one trillion, three hundred five billion, four hundred twenty million, four hundred twenty-four thousand, three".