123663181007 has 2 divisors, whose sum is σ = 123663181008. Its totient is φ = 123663181006.

The previous prime is 123663181003. The next prime is 123663181087. The reversal of 123663181007 is 700181366321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123663181007 - 2² = 123663181003 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123663181003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61831590503 + 61831590504.

It is an arithmetic number, because the mean of its divisors is an integer number (61831590504).

Almost surely, 2^123663181007 is an apocalyptic number.

123663181007 is a deficient number, since it is larger than the sum of its proper divisors (1).

123663181007 is an equidigital number, since it uses as much as digits as its factorization.

123663181007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 123663181007 in words is "one hundred twenty-three billion, six hundred sixty-three million, one hundred eighty-one thousand, seven".