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123124223 is a prime number
BaseRepresentation
bin1110101011010…
…11100111111111
322120200100200102
413111223213333
5223004433343
620114551315
73023352515
oct725534777
9276610612
10123124223
1163556062
123529853b
131c67bc91
14124d04b5
15ac213b8
hex756b9ff

123124223 has 2 divisors, whose sum is σ = 123124224. Its totient is φ = 123124222.

The previous prime is 123124207. The next prime is 123124279. The reversal of 123124223 is 322421321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123124223 - 24 = 123124207 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 123124195 and 123124204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123124823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61562111 + 61562112.

It is an arithmetic number, because the mean of its divisors is an integer number (61562112).

Almost surely, 2123124223 is an apocalyptic number.

123124223 is a deficient number, since it is larger than the sum of its proper divisors (1).

123124223 is an equidigital number, since it uses as much as digits as its factorization.

123124223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 20.

The square root of 123124223 is about 11096.1354984517. The cubic root of 123124223 is about 497.4863482866.

Adding to 123124223 its reverse (322421321), we get a palindrome (445545544).

The spelling of 123124223 in words is "one hundred twenty-three million, one hundred twenty-four thousand, two hundred twenty-three".