203120441 has 2 divisors, whose sum is σ = 203120442. Its totient is φ = 203120440.

The previous prime is 203120413. The next prime is 203120459. The reversal of 203120441 is 144021302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202236841 + 883600 = 14221^2 + 940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203120441 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_11242124 and since 203120441 and 11242124 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (203120461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101560220 + 101560221.

It is an arithmetic number, because the mean of its divisors is an integer number (101560221).

Almost surely, 2^203120441 is an apocalyptic number.

It is an amenable number.

203120441 is a deficient number, since it is larger than the sum of its proper divisors (1).

203120441 is an equidigital number, since it uses as much as digits as its factorization.

203120441 is an evil number, because the sum of its binary digits is even.

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

The square root of 203120441 is about 14252.0328725414. The cubic root of 203120441 is about 587.8292740574.

Adding to 203120441 its reverse (144021302), we get a palindrome (347141743).

The spelling of 203120441 in words is "two hundred three million, one hundred twenty thousand, four hundred forty-one".