20143012 has 12 divisors (see below), whose sum is σ = 35487900. Its totient is φ = 10003616.

The previous prime is 20143007. The next prime is 20143027. The reversal of 20143012 is 21034102.

It can be written as a sum of positive squares in 2 ways, for example, as 4901796 + 15241216 = 2214^2 + 3904^2 .

It is a super-3 number, since 3×20143012³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20142983 and 20143001.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 16303 + ... + 17494.

It is an arithmetic number, because the mean of its divisors is an integer number (2957325).

Almost surely, 2^20143012 is an apocalyptic number.

It is an amenable number.

20143012 is a deficient number, since it is larger than the sum of its proper divisors (15344888).

20143012 is a wasteful number, since it uses less digits than its factorization.

20143012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33950 (or 33948 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20143012 is about 4488.0967012755. The cubic root of 20143012 is about 272.0872161202.

Adding to 20143012 its reverse (21034102), we get a palindrome (41177114).

The spelling of 20143012 in words is "twenty million, one hundred forty-three thousand, twelve".