123405683 has 2 divisors, whose sum is σ = 123405684. Its totient is φ = 123405682.

The previous prime is 123405647. The next prime is 123405713. The reversal of 123405683 is 386504321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123405683 - 2⁸ = 123405427 is a prime.

It is not a weakly prime, because it can be changed into another prime (123405083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61702841 + 61702842.

It is an arithmetic number, because the mean of its divisors is an integer number (61702842).

Almost surely, 2^123405683 is an apocalyptic number.

123405683 is a deficient number, since it is larger than the sum of its proper divisors (1).

123405683 is an equidigital number, since it uses as much as digits as its factorization.

123405683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 123405683 is about 11108.8110524934. The cubic root of 123405683 is about 497.8651417335.

The spelling of 123405683 in words is "one hundred twenty-three million, four hundred five thousand, six hundred eighty-three".