20110103 has 16 divisors (see below), whose sum is σ = 22579200. Its totient is φ = 17785440.

The previous prime is 20110087. The next prime is 20110109. The reversal of 20110103 is 30101102.

It is a cyclic number.

It is not a de Polignac number, because 20110103 - 2⁴ = 20110087 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 (20110109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55838 + ... + 56196.

It is an arithmetic number, because the mean of its divisors is an integer number (1411200).

Almost surely, 2^20110103 is an apocalyptic number.

20110103 is a deficient number, since it is larger than the sum of its proper divisors (2469097).

20110103 is a wasteful number, since it uses less digits than its factorization.

20110103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 20110103 is about 4484.4289491528. The cubic root of 20110103 is about 271.9389595943.

Adding to 20110103 its reverse (30101102), we get a palindrome (50211205).

Subtracting 20110103 from its reverse (30101102), we obtain a palindrome (9990999).

The spelling of 20110103 in words is "twenty million, one hundred ten thousand, one hundred three".