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12903217274513 is a prime number
BaseRepresentation
bin1011101111000100001110…
…1011101001111010010001
31200200112110101201122222002
42323301003223221322101
53142401242110241023
643235353422523345
72501140516121066
oct273610353517221
950615411648862
1012903217274513
114125250846655
121544891436555
137279ca885207
1432873a3a8c6d
15175997b0db28
hexbbc43ae9e91

12903217274513 has 2 divisors, whose sum is σ = 12903217274514. Its totient is φ = 12903217274512.

The previous prime is 12903217274461. The next prime is 12903217274531. The reversal of 12903217274513 is 31547271230921.

Together with next prime (12903217274531) 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., 12029014714369 + 874202560144 = 3468287^2 + 934988^2 .

It is a cyclic number.

It is not a de Polignac number, because 12903217274513 - 242 = 8505170763409 is a prime.

It is not a weakly prime, because it can be changed into another prime (12903217274593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451608637256 + 6451608637257.

It is an arithmetic number, because the mean of its divisors is an integer number (6451608637257).

Almost surely, 212903217274513 is an apocalyptic number.

It is an amenable number.

12903217274513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12903217274513 is an equidigital number, since it uses as much as digits as its factorization.

12903217274513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 12903217274513 in words is "twelve trillion, nine hundred three billion, two hundred seventeen million, two hundred seventy-four thousand, five hundred thirteen".