20124012 has 12 divisors (see below), whose sum is σ = 46956056. Its totient is φ = 6708000.

The previous prime is 20124007. The next prime is 20124023. The reversal of 20124012 is 21042102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20124012² = 809951717952288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1677001 = 20124012 / (2 + 0 + 1 + 2 + 4 + 0 + 1 + 2).

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 838489 + ... + 838512.

Almost surely, 2^20124012 is an apocalyptic number.

It is an amenable number.

20124012 is an abundant number, since it is smaller than the sum of its proper divisors (26832044).

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

20124012 is a wasteful number, since it uses less digits than its factorization.

20124012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677008 (or 1677006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 20124012 is about 4485.9794917052. The cubic root of 20124012 is about 272.0016399843.

Adding to 20124012 its reverse (21042102), we get a palindrome (41166114).

The spelling of 20124012 in words is "twenty million, one hundred twenty-four thousand, twelve".