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123122210297 is a prime number
BaseRepresentation
bin111001010101010100…
…1111101010111111001
3102202210121011022211212
41302222221331113321
54004123241212142
6132321144132505
711616040343222
oct1625251752771
9382717138755
10123122210297
1148241306a09
121ba41467135
13b7c1cba898
145d5dc82249
153309139d82
hex1caaa7d5f9

123122210297 has 2 divisors, whose sum is σ = 123122210298. Its totient is φ = 123122210296.

The previous prime is 123122210279. The next prime is 123122210353. The reversal of 123122210297 is 792012221321.

Together with previous prime (123122210279) 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., 121000318201 + 2121892096 = 347851^2 + 46064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-123122210297 is a prime.

It is not a weakly prime, because it can be changed into another prime (123122210597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61561105148 + 61561105149.

It is an arithmetic number, because the mean of its divisors is an integer number (61561105149).

Almost surely, 2123122210297 is an apocalyptic number.

It is an amenable number.

123122210297 is a deficient number, since it is larger than the sum of its proper divisors (1).

123122210297 is an equidigital number, since it uses as much as digits as its factorization.

123122210297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 123122210297 in words is "one hundred twenty-three billion, one hundred twenty-two million, two hundred ten thousand, two hundred ninety-seven".