203400201 has 16 divisors (see below), whose sum is σ = 285070464. Its totient is φ = 128751744.

The previous prime is 203400181. The next prime is 203400203. The reversal of 203400201 is 102004302.

It is not a de Polignac number, because 203400201 - 2⁹ = 203399689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (203400203) 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, 1306 + ... + 20211.

It is an arithmetic number, because the mean of its divisors is an integer number (17816904).

Almost surely, 2^203400201 is an apocalyptic number.

It is an amenable number.

203400201 is a deficient number, since it is larger than the sum of its proper divisors (81670263).

203400201 is a wasteful number, since it uses less digits than its factorization.

203400201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21680.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 203400201 is about 14261.8442355819. The cubic root of 203400201 is about 588.0990248097.

Adding to 203400201 its reverse (102004302), we get a palindrome (305404503).

The spelling of 203400201 in words is "two hundred three million, four hundred thousand, two hundred one".