123102479 has 2 divisors, whose sum is σ = 123102480. Its totient is φ = 123102478.

The previous prime is 123102449. The next prime is 123102481. The reversal of 123102479 is 974201321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123102479 - 2⁸ = 123102223 is a prime.

Together with 123102481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123102439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61551239 + 61551240.

It is an arithmetic number, because the mean of its divisors is an integer number (61551240).

Almost surely, 2^123102479 is an apocalyptic number.

123102479 is a deficient number, since it is larger than the sum of its proper divisors (1).

123102479 is an equidigital number, since it uses as much as digits as its factorization.

123102479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 123102479 is about 11095.1556546089. The cubic root of 123102479 is about 497.4570608463.

The spelling of 123102479 in words is "one hundred twenty-three million, one hundred two thousand, four hundred seventy-nine".