1318530562523 has 2 divisors, whose sum is σ = 1318530562524. Its totient is φ = 1318530562522.

The previous prime is 1318530562463. The next prime is 1318530562597. The reversal of 1318530562523 is 3252650358131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1318530562523 - 2⁴⁰ = 219018934747 is a prime.

It is not a weakly prime, because it can be changed into another prime (1318530564523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659265281261 + 659265281262.

It is an arithmetic number, because the mean of its divisors is an integer number (659265281262).

Almost surely, 2^{1318530562523} is an apocalyptic number.

1318530562523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318530562523 is an equidigital number, since it uses as much as digits as its factorization.

1318530562523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 1318530562523 in words is "one trillion, three hundred eighteen billion, five hundred thirty million, five hundred sixty-two thousand, five hundred twenty-three".