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BaseRepresentation
bin11110000111110011
320021020121
4132013303
512422004
62351111
71022464
oct360763
9207217
10123379
1184773
125b497
1344209
1432d6b
1526854
hex1e1f3

123379 has 2 divisors, whose sum is σ = 123380. Its totient is φ = 123378.

The previous prime is 123377. The next prime is 123397. The reversal of 123379 is 973321.

Together with next prime (123397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (973321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123379 - 21 = 123377 is a prime.

Together with 123377, it forms a pair of twin primes.

It is a plaindrome in base 10.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (123373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61689 + 61690.

It is an arithmetic number, because the mean of its divisors is an integer number (61690).

2123379 is an apocalyptic number.

123379 is a deficient number, since it is larger than the sum of its proper divisors (1).

123379 is an equidigital number, since it uses as much as digits as its factorization.

123379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134, while the sum is 25.

The square root of 123379 is about 351.2534697338. The cubic root of 123379 is about 49.7829256046.

The spelling of 123379 in words is "one hundred twenty-three thousand, three hundred seventy-nine".