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12997795211 is a prime number
BaseRepresentation
bin11000001101011101…
…01001110110001011
31020112211122102001122
430012232221312023
5203104413421321
65545431505455
7640045302452
oct140656516613
936484572048
1012997795211
11556aa09a15
122628b2828b
1312c1aac2ab
148b4353b99
155111688ab
hex306ba9d8b

12997795211 has 2 divisors, whose sum is σ = 12997795212. Its totient is φ = 12997795210.

The previous prime is 12997795169. The next prime is 12997795243. The reversal of 12997795211 is 11259779921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12997795211 - 226 = 12930686347 is a prime.

It is not a weakly prime, because it can be changed into another prime (12997795511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6498897605 + 6498897606.

It is an arithmetic number, because the mean of its divisors is an integer number (6498897606).

Almost surely, 212997795211 is an apocalyptic number.

12997795211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12997795211 is an equidigital number, since it uses as much as digits as its factorization.

12997795211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 714420, while the sum is 53.

The spelling of 12997795211 in words is "twelve billion, nine hundred ninety-seven million, seven hundred ninety-five thousand, two hundred eleven".