203424101 has 4 divisors (see below), whose sum is σ = 203633292. Its totient is φ = 203214912.

The previous prime is 203424071. The next prime is 203424103. The reversal of 203424101 is 101424302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 149475076 + 53949025 = 12226^2 + 7345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203424101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 203424101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203424103) 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, 103130 + ... + 105083.

It is an arithmetic number, because the mean of its divisors is an integer number (50908323).

Almost surely, 2^203424101 is an apocalyptic number.

It is an amenable number.

203424101 is a deficient number, since it is larger than the sum of its proper divisors (209191).

203424101 is an equidigital number, since it uses as much as digits as its factorization.

203424101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209190.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 203424101 is about 14262.6821110197. The cubic root of 203424101 is about 588.1220582451.

Adding to 203424101 its reverse (101424302), we get a palindrome (304848403).

The spelling of 203424101 in words is "two hundred three million, four hundred twenty-four thousand, one hundred one".