123207047 has 2 divisors, whose sum is σ = 123207048. Its totient is φ = 123207046.

The previous prime is 123207043. The next prime is 123207079. The reversal of 123207047 is 740702321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123207047 - 2² = 123207043 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123207043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61603523 + 61603524.

It is an arithmetic number, because the mean of its divisors is an integer number (61603524).

Almost surely, 2^123207047 is an apocalyptic number.

123207047 is a deficient number, since it is larger than the sum of its proper divisors (1).

123207047 is an equidigital number, since it uses as much as digits as its factorization.

123207047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 123207047 is about 11099.8669811850. The cubic root of 123207047 is about 497.5978740630.

Adding to 123207047 its reverse (740702321), we get a palindrome (863909368).

The spelling of 123207047 in words is "one hundred twenty-three million, two hundred seven thousand, forty-seven".