1306112111503 has 2 divisors, whose sum is σ = 1306112111504. Its totient is φ = 1306112111502.

The previous prime is 1306112111501. The next prime is 1306112111527. The reversal of 1306112111503 is 3051112116031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1306112111503 - 2¹ = 1306112111501 is a prime.

Together with 1306112111501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1306112111501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653056055751 + 653056055752.

It is an arithmetic number, because the mean of its divisors is an integer number (653056055752).

Almost surely, 2^{1306112111503} is an apocalyptic number.

1306112111503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306112111503 is an equidigital number, since it uses as much as digits as its factorization.

1306112111503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 25.

Adding to 1306112111503 its reverse (3051112116031), we get a palindrome (4357224227534).

The spelling of 1306112111503 in words is "one trillion, three hundred six billion, one hundred twelve million, one hundred eleven thousand, five hundred three".