2103444257 has 2 divisors, whose sum is σ = 2103444258. Its totient is φ = 2103444256.

The previous prime is 2103444143. The next prime is 2103444293. The reversal of 2103444257 is 7524443012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2048105536 + 55338721 = 45256^2 + 7439^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103444257 - 2¹⁰ = 2103443233 is a prime.

It is not a weakly prime, because it can be changed into another prime (2103443257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051722128 + 1051722129.

It is an arithmetic number, because the mean of its divisors is an integer number (1051722129).

Almost surely, 2^2103444257 is an apocalyptic number.

It is an amenable number.

2103444257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103444257 is an equidigital number, since it uses as much as digits as its factorization.

2103444257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 2103444257 is about 45863.3214780613. The cubic root of 2103444257 is about 1281.2788847678.

Adding to 2103444257 its reverse (7524443012), we get a palindrome (9627887269).

The spelling of 2103444257 in words is "two billion, one hundred three million, four hundred forty-four thousand, two hundred fifty-seven".