203120201 has 4 divisors (see below), whose sum is σ = 203151312. Its totient is φ = 203089092.

The previous prime is 203120189. The next prime is 203120257. The reversal of 203120201 is 102021302.

It is a happy number.

203120201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203120201 - 2¹⁸ = 202858057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203120501) 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, 1571 + ... + 20216.

It is an arithmetic number, because the mean of its divisors is an integer number (50787828).

Almost surely, 2^203120201 is an apocalyptic number.

It is an amenable number.

203120201 is a deficient number, since it is larger than the sum of its proper divisors (31111).

203120201 is an equidigital number, since it uses as much as digits as its factorization.

203120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31110.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 203120201 is about 14252.0244526874. The cubic root of 203120201 is about 587.8290425378.

Adding to 203120201 its reverse (102021302), we get a palindrome (305141503).

The spelling of 203120201 in words is "two hundred three million, one hundred twenty thousand, two hundred one".