1250023203257 has 2 divisors, whose sum is σ = 1250023203258. Its totient is φ = 1250023203256.

The previous prime is 1250023203211. The next prime is 1250023203287. The reversal of 1250023203257 is 7523023200521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 895211176336 + 354812026921 = 946156^2 + 595661^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250023203257 - 2¹⁴ = 1250023186873 is a prime.

It is a super-2 number, since 2×1250023203257² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1250023203287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625011601628 + 625011601629.

It is an arithmetic number, because the mean of its divisors is an integer number (625011601629).

Almost surely, 2^{1250023203257} is an apocalyptic number.

It is an amenable number.

1250023203257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1250023203257 is an equidigital number, since it uses as much as digits as its factorization.

1250023203257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25200, while the sum is 32.

Adding to 1250023203257 its reverse (7523023200521), we get a palindrome (8773046403778).

The spelling of 1250023203257 in words is "one trillion, two hundred fifty billion, twenty-three million, two hundred three thousand, two hundred fifty-seven".