203123441 has 2 divisors, whose sum is σ = 203123442. Its totient is φ = 203123440.

The previous prime is 203123413. The next prime is 203123513. The reversal of 203123441 is 144321302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116726416 + 86397025 = 10804^2 + 9295^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203123441 is a prime.

It is not a weakly prime, because it can be changed into another prime (203123411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101561720 + 101561721.

It is an arithmetic number, because the mean of its divisors is an integer number (101561721).

Almost surely, 2^203123441 is an apocalyptic number.

It is an amenable number.

203123441 is a deficient number, since it is larger than the sum of its proper divisors (1).

203123441 is an equidigital number, since it uses as much as digits as its factorization.

203123441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 203123441 is about 14252.1381202962. The cubic root of 203123441 is about 587.8321680368.

Adding to 203123441 its reverse (144321302), we get a palindrome (347444743).

The spelling of 203123441 in words is "two hundred three million, one hundred twenty-three thousand, four hundred forty-one".