20107109 has 8 divisors (see below), whose sum is σ = 22058400. Its totient is φ = 18176400.

The previous prime is 20107093. The next prime is 20107133. The reversal of 20107109 is 90170102.

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

It is not a de Polignac number, because 20107109 - 2⁴ = 20107093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20106109) 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, 3059 + ... + 7040.

It is an arithmetic number, because the mean of its divisors is an integer number (2757300).

Almost surely, 2^20107109 is an apocalyptic number.

It is an amenable number.

20107109 is a deficient number, since it is larger than the sum of its proper divisors (1951291).

20107109 is a wasteful number, since it uses less digits than its factorization.

20107109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10291.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 20107109 is about 4484.0951149591. The cubic root of 20107109 is about 271.9254634649.

It can be divided in two parts, 2010 and 7109, that added together give a palindrome (9119).

The spelling of 20107109 in words is "twenty million, one hundred seven thousand, one hundred nine".