20201103 has 32 divisors (see below), whose sum is σ = 32748800. Its totient is φ = 12231648.

The previous prime is 20201101. The next prime is 20201113. The reversal of 20201103 is 30110202.

It is a happy number.

It is not a de Polignac number, because 20201103 - 2¹ = 20201101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23088 + ... + 23946.

It is an arithmetic number, because the mean of its divisors is an integer number (1023400).

Almost surely, 2^20201103 is an apocalyptic number.

20201103 is a deficient number, since it is larger than the sum of its proper divisors (12547697).

20201103 is a wasteful number, since it uses less digits than its factorization.

20201103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 20201103 is about 4494.5637163133. The cubic root of 20201103 is about 272.3485250791.

Adding to 20201103 its reverse (30110202), we get a palindrome (50311305).

Subtracting 20201103 from its reverse (30110202), we obtain a palindrome (9909099).

The spelling of 20201103 in words is "twenty million, two hundred one thousand, one hundred three".