1305434503507 has 2 divisors, whose sum is σ = 1305434503508. Its totient is φ = 1305434503506.

The previous prime is 1305434503501. The next prime is 1305434503511. The reversal of 1305434503507 is 7053054345031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1305434503507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1305434503507.

It is not a weakly prime, because it can be changed into another prime (1305434503501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652717251753 + 652717251754.

It is an arithmetic number, because the mean of its divisors is an integer number (652717251754).

Almost surely, 2^{1305434503507} is an apocalyptic number.

1305434503507 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305434503507 is an equidigital number, since it uses as much as digits as its factorization.

1305434503507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 40.

Adding to 1305434503507 its reverse (7053054345031), we get a palindrome (8358488848538).

The spelling of 1305434503507 in words is "one trillion, three hundred five billion, four hundred thirty-four million, five hundred three thousand, five hundred seven".