20017011 has 8 divisors (see below), whose sum is σ = 30502144. Its totient is φ = 11438280.

The previous prime is 20017009. The next prime is 20017031. The reversal of 20017011 is 11071002.

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

It is not a de Polignac number, because 20017011 - 2¹ = 20017009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20017001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476575 + ... + 476616.

It is an arithmetic number, because the mean of its divisors is an integer number (3812768).

Almost surely, 2^20017011 is an apocalyptic number.

20017011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20017011 is a deficient number, since it is larger than the sum of its proper divisors (10485133).

20017011 is an equidigital number, since it uses as much as digits as its factorization.

20017011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953201.

The product of its (nonzero) digits is 14, while the sum is 12.

The square root of 20017011 is about 4474.0374383771. The cubic root of 20017011 is about 271.5186981143.

Adding to 20017011 its reverse (11071002), we get a palindrome (31088013).

The spelling of 20017011 in words is "twenty million, seventeen thousand, eleven".