201023103 has 4 divisors (see below), whose sum is σ = 268030808. Its totient is φ = 134015400.

The previous prime is 201023101. The next prime is 201023111. The reversal of 201023103 is 301320102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201023103 - 2¹ = 201023101 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 (201023101) 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, 33503848 + ... + 33503853.

It is an arithmetic number, because the mean of its divisors is an integer number (67007702).

Almost surely, 2^201023103 is an apocalyptic number.

201023103 is a deficient number, since it is larger than the sum of its proper divisors (67007705).

201023103 is an equidigital number, since it uses as much as digits as its factorization.

201023103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67007704.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 201023103 is about 14178.2616353346. The cubic root of 201023103 is about 585.7990425177.

Adding to 201023103 its reverse (301320102), we get a palindrome (502343205).

The spelling of 201023103 in words is "two hundred one million, twenty-three thousand, one hundred three".