123663021146 has 16 divisors (see below), whose sum is σ = 212136350976. Its totient is φ = 52962787536.

The previous prime is 123663021143. The next prime is 123663021151. The reversal of 123663021146 is 641120366321.

It is not an unprimeable number, because it can be changed into a prime (123663021143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2949281 + ... + 2990916.

It is an arithmetic number, because the mean of its divisors is an integer number (13258521936).

Almost surely, 2^123663021146 is an apocalyptic number.

123663021146 is a deficient number, since it is larger than the sum of its proper divisors (88473329830).

123663021146 is a wasteful number, since it uses less digits than its factorization.

123663021146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5941693.

The product of its (nonzero) digits is 31104, while the sum is 35.

Adding to 123663021146 its reverse (641120366321), we get a palindrome (764783387467).

The spelling of 123663021146 in words is "one hundred twenty-three billion, six hundred sixty-three million, twenty-one thousand, one hundred forty-six".