13118478473 has 2 divisors, whose sum is σ = 13118478474. Its totient is φ = 13118478472.

The previous prime is 13118478437. The next prime is 13118478479. The reversal of 13118478473 is 37487481131.

Together with previous prime (13118478437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7110368329 + 6008110144 = 84323^2 + 77512^2 .

It is a cyclic number.

It is not a de Polignac number, because 13118478473 - 2¹⁸ = 13118216329 is a prime.

It is not a weakly prime, because it can be changed into another prime (13118478479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6559239236 + 6559239237.

It is an arithmetic number, because the mean of its divisors is an integer number (6559239237).

Almost surely, 2^13118478473 is an apocalyptic number.

It is an amenable number.

13118478473 is a deficient number, since it is larger than the sum of its proper divisors (1).

13118478473 is an equidigital number, since it uses as much as digits as its factorization.

13118478473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The spelling of 13118478473 in words is "thirteen billion, one hundred eighteen million, four hundred seventy-eight thousand, four hundred seventy-three".