20120106 has 8 divisors (see below), whose sum is σ = 40240224. Its totient is φ = 6706700.

The previous prime is 20120081. The next prime is 20120143. The reversal of 20120106 is 60102102.

It is a sphenic number, since it is the product of 3 distinct primes.

20120106 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20120091 and 20120100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676670 + ... + 1676681.

It is an arithmetic number, because the mean of its divisors is an integer number (5030028).

Almost surely, 2^20120106 is an apocalyptic number.

20120106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20120106 is a wasteful number, since it uses less digits than its factorization.

20120106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353356.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 20120106 is about 4485.5441141516. The cubic root of 20120106 is about 271.9840406582.

Adding to 20120106 its reverse (60102102), we get a palindrome (80222208).

The spelling of 20120106 in words is "twenty million, one hundred twenty thousand, one hundred six".