201234403 has 4 divisors (see below), whose sum is σ = 201534088. Its totient is φ = 200934720.

The previous prime is 201234391. The next prime is 201234419. The reversal of 201234403 is 304432102.

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

It is a cyclic number.

It is not a de Polignac number, because 201234403 - 2²⁵ = 167679971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201204403) 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, 148833 + ... + 150178.

It is an arithmetic number, because the mean of its divisors is an integer number (50383522).

Almost surely, 2^201234403 is an apocalyptic number.

201234403 is a deficient number, since it is larger than the sum of its proper divisors (299685).

201234403 is an equidigital number, since it uses as much as digits as its factorization.

201234403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299684.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 201234403 is about 14185.7112264419. The cubic root of 201234403 is about 586.0042195878.

Adding to 201234403 its reverse (304432102), we get a palindrome (505666505).

The spelling of 201234403 in words is "two hundred one million, two hundred thirty-four thousand, four hundred three".