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12183031151917 is a prime number
BaseRepresentation
bin1011000101001001010100…
…1111100111110100101101
31121010200112101110222202221
42301102111033213310231
53044101321433330132
641524450210515341
72365123604102143
oct261222517476455
947120471428687
1012183031151917
11397788152430a
1214491a0595b51
136a4b16304a42
1430193a1ad593
15161d967c2e97
hexb14953e7d2d

12183031151917 has 2 divisors, whose sum is σ = 12183031151918. Its totient is φ = 12183031151916.

The previous prime is 12183031151909. The next prime is 12183031151971. The reversal of 12183031151917 is 71915113038121.

Together with next prime (12183031151971) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9640317072996 + 2542714078921 = 3104886^2 + 1594589^2 .

It is a cyclic number.

It is not a de Polignac number, because 12183031151917 - 23 = 12183031151909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12183031151987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6091515575958 + 6091515575959.

It is an arithmetic number, because the mean of its divisors is an integer number (6091515575959).

Almost surely, 212183031151917 is an apocalyptic number.

It is an amenable number.

12183031151917 is a deficient number, since it is larger than the sum of its proper divisors (1).

12183031151917 is an equidigital number, since it uses as much as digits as its factorization.

12183031151917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 43.

The spelling of 12183031151917 in words is "twelve trillion, one hundred eighty-three billion, thirty-one million, one hundred fifty-one thousand, nine hundred seventeen".