20103118 has 8 divisors (see below), whose sum is σ = 34462512. Its totient is φ = 8615616.

The previous prime is 20103113. The next prime is 20103137. The reversal of 20103118 is 81130102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 717955 + ... + 717982.

It is an arithmetic number, because the mean of its divisors is an integer number (4307814).

Almost surely, 2^20103118 is an apocalyptic number.

20103118 is a deficient number, since it is larger than the sum of its proper divisors (14359394).

20103118 is a wasteful number, since it uses less digits than its factorization.

20103118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435946.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 20103118 is about 4483.6500755523. The cubic root of 20103118 is about 271.9074710501.

The spelling of 20103118 in words is "twenty million, one hundred three thousand, one hundred eighteen".