123020073 has 16 divisors (see below), whose sum is σ = 198820800. Its totient is φ = 74557440.

The previous prime is 123020047. The next prime is 123020087. The reversal of 123020073 is 370020321.

It is not a de Polignac number, because 123020073 - 2¹⁴ = 123003689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123020173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206808 + ... + 207401.

It is an arithmetic number, because the mean of its divisors is an integer number (12426300).

Almost surely, 2^123020073 is an apocalyptic number.

It is an amenable number.

123020073 is a deficient number, since it is larger than the sum of its proper divisors (75800727).

123020073 is a wasteful number, since it uses less digits than its factorization.

123020073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414229 (or 414223 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 123020073 is about 11091.4414302200. The cubic root of 123020073 is about 497.3460351994.

Adding to 123020073 its reverse (370020321), we get a palindrome (493040394).

The spelling of 123020073 in words is "one hundred twenty-three million, twenty thousand, seventy-three".