123020320224 has 48 divisors (see below), whose sum is σ = 339924574080. Its totient is φ = 38848521600.

The previous prime is 123020320193. The next prime is 123020320301. The reversal of 123020320224 is 422023020321.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 123020320224.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33720852 + ... + 33724499.

It is an arithmetic number, because the mean of its divisors is an integer number (7081761960).

Almost surely, 2^123020320224 is an apocalyptic number.

It is an amenable number.

123020320224 is an abundant number, since it is smaller than the sum of its proper divisors (216904253856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123020320224 is a wasteful number, since it uses less digits than its factorization.

123020320224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67445383 (or 67445375 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 123020320224 its reverse (422023020321), we get a palindrome (545043340545).

The spelling of 123020320224 in words is "one hundred twenty-three billion, twenty million, three hundred twenty thousand, two hundred twenty-four".