20012073 has 16 divisors (see below), whose sum is σ = 28353600. Its totient is φ = 12519360.

The previous prime is 20012063. The next prime is 20012099. The reversal of 20012073 is 37021002.

It is not a de Polignac number, because 20012073 - 2¹⁸ = 19749929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20012023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4603 + ... + 7823.

It is an arithmetic number, because the mean of its divisors is an integer number (1772100).

Almost surely, 2^20012073 is an apocalyptic number.

It is an amenable number.

20012073 is a deficient number, since it is larger than the sum of its proper divisors (8341527).

20012073 is a wasteful number, since it uses less digits than its factorization.

20012073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 20012073 is about 4473.4855537936. The cubic root of 20012073 is about 271.4963692795.

Adding to 20012073 its reverse (37021002), we get a palindrome (57033075).

The spelling of 20012073 in words is "twenty million, twelve thousand, seventy-three".