123247129568 has 12 divisors (see below), whose sum is σ = 242642786400. Its totient is φ = 61623564768.

The previous prime is 123247129549. The next prime is 123247129571. The reversal of 123247129568 is 865921742321.

It is a congruent number.

It is an unprimeable number.

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, 1925736368 + ... + 1925736431.

It is an arithmetic number, because the mean of its divisors is an integer number (20220232200).

Almost surely, 2^123247129568 is an apocalyptic number.

It is an amenable number.

123247129568 is a deficient number, since it is larger than the sum of its proper divisors (119395656832).

123247129568 is an equidigital number, since it uses as much as digits as its factorization.

123247129568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851472809 (or 3851472801 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The spelling of 123247129568 in words is "one hundred twenty-three billion, two hundred forty-seven million, one hundred twenty-nine thousand, five hundred sixty-eight".