20010512 has 20 divisors (see below), whose sum is σ = 39070416. Its totient is φ = 9927840.

The previous prime is 20010491. The next prime is 20010517. The reversal of 20010512 is 21501002.

It is a junction number, because it is equal to n+sod(n) for n = 20010493 and 20010502.

It is not an unprimeable number, because it can be changed into a prime (20010517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2678 + ... + 6869.

Almost surely, 2^20010512 is an apocalyptic number.

It is an amenable number.

20010512 is a deficient number, since it is larger than the sum of its proper divisors (19059904).

20010512 is a wasteful number, since it uses less digits than its factorization.

20010512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9686 (or 9680 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 20010512 is about 4473.3110779377. The cubic root of 20010512 is about 271.4893099266.

Adding to 20010512 its reverse (21501002), we get a palindrome (41511514).

The spelling of 20010512 in words is "twenty million, ten thousand, five hundred twelve".