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12857338201 is a prime number
BaseRepresentation
bin10111111100101101…
…10110100101011001
31020012001100110021011
423332112312211121
5202312434310301
65523453213521
7633421400011
oct137626664531
936161313234
1012857338201
1154a86a5544
1225a9a912a1
13129b971c36
1489d830c41
15503b71a51
hex2fe5b6959

12857338201 has 2 divisors, whose sum is σ = 12857338202. Its totient is φ = 12857338200.

The previous prime is 12857338159. The next prime is 12857338217. The reversal of 12857338201 is 10283375821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10999814400 + 1857523801 = 104880^2 + 43099^2 .

It is an emirp because it is prime and its reverse (10283375821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12857338201 - 27 = 12857338073 is a prime.

It is a super-2 number, since 2×128573382012 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12857338301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6428669100 + 6428669101.

It is an arithmetic number, because the mean of its divisors is an integer number (6428669101).

Almost surely, 212857338201 is an apocalyptic number.

It is an amenable number.

12857338201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12857338201 is an equidigital number, since it uses as much as digits as its factorization.

12857338201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 12857338201 in words is "twelve billion, eight hundred fifty-seven million, three hundred thirty-eight thousand, two hundred one".