Search a number
-
+
12805358753503 is a prime number
BaseRepresentation
bin1011101001010111101011…
…0111000001011011011111
31200100011212110122201122001
42322111322313001123133
53134300333320103003
643122411155103131
72461104504324421
oct272257267013337
950304773581561
1012805358753503
1140977a41aa3a8
1215299208a1aa7
1371b703927404
14323ad5910811
1517316b8d161d
hexba57adc16df

12805358753503 has 2 divisors, whose sum is σ = 12805358753504. Its totient is φ = 12805358753502.

The previous prime is 12805358753501. The next prime is 12805358753599. The reversal of 12805358753503 is 30535785350821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12805358753503 - 21 = 12805358753501 is a prime.

Together with 12805358753501, 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 (12805358753501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6402679376751 + 6402679376752.

It is an arithmetic number, because the mean of its divisors is an integer number (6402679376752).

Almost surely, 212805358753503 is an apocalyptic number.

12805358753503 is a deficient number, since it is larger than the sum of its proper divisors (1).

12805358753503 is an equidigital number, since it uses as much as digits as its factorization.

12805358753503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120000, while the sum is 55.

The spelling of 12805358753503 in words is "twelve trillion, eight hundred five billion, three hundred fifty-eight million, seven hundred fifty-three thousand, five hundred three".