123033210320 has 40 divisors (see below), whose sum is σ = 286529875200. Its totient is φ = 49131105920.

The previous prime is 123033210319. The next prime is 123033210343. The reversal of 123033210320 is 23012330321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123033210292 and 123033210301.

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 in 7 ways as a sum of consecutive naturals, for example, 1235816 + ... + 1331655.

It is an arithmetic number, because the mean of its divisors is an integer number (7163246880).

Almost surely, 2^123033210320 is an apocalyptic number.

123033210320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123033210320 is an abundant number, since it is smaller than the sum of its proper divisors (163496664880).

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

123033210320 is a wasteful number, since it uses less digits than its factorization.

123033210320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568083 (or 2568077 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 123033210320 its reverse (23012330321), we get a palindrome (146045540641).

The spelling of 123033210320 in words is "one hundred twenty-three billion, thirty-three million, two hundred ten thousand, three hundred twenty".