203411121 has 8 divisors (see below), whose sum is σ = 271639200. Its totient is φ = 135395232.

The previous prime is 203411101. The next prime is 203411141. The reversal of 203411121 is 121114302.

It is an interprime number because it is at equal distance from previous prime (203411101) and next prime (203411141).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203411121 - 2⁹ = 203410609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203411121.

It is not an unprimeable number, because it can be changed into a prime (203411101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50796 + ... + 54653.

It is an arithmetic number, because the mean of its divisors is an integer number (33954900).

Almost surely, 2^203411121 is an apocalyptic number.

It is an amenable number.

203411121 is a deficient number, since it is larger than the sum of its proper divisors (68228079).

203411121 is a wasteful number, since it uses less digits than its factorization.

203411121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106095.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 203411121 is about 14262.2270701318. The cubic root of 203411121 is about 588.1095490969.

Adding to 203411121 its reverse (121114302), we get a palindrome (324525423).

The spelling of 203411121 in words is "two hundred three million, four hundred eleven thousand, one hundred twenty-one".