680900123 has 2 divisors, whose sum is σ = 680900124. Its totient is φ = 680900122.

The previous prime is 680900083. The next prime is 680900149. The reversal of 680900123 is 321009086.

680900123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 680900123 - 2¹⁶ = 680834587 is a prime.

It is not a weakly prime, because it can be changed into another prime (680900183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340450061 + 340450062.

It is an arithmetic number, because the mean of its divisors is an integer number (340450062).

Almost surely, 2^680900123 is an apocalyptic number.

680900123 is a deficient number, since it is larger than the sum of its proper divisors (1).

680900123 is an equidigital number, since it uses as much as digits as its factorization.

680900123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 680900123 is about 26094.0629837517. The cubic root of 680900123 is about 879.7537719337.

The spelling of 680900123 in words is "six hundred eighty million, nine hundred thousand, one hundred twenty-three".