1330330131257 has 2 divisors, whose sum is σ = 1330330131258. Its totient is φ = 1330330131256.

The previous prime is 1330330131241. The next prime is 1330330131269. The reversal of 1330330131257 is 7521310330331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1189443259456 + 140886871801 = 1090616^2 + 375349^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330330131257 - 2⁴ = 1330330131241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1330330130257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665165065628 + 665165065629.

It is an arithmetic number, because the mean of its divisors is an integer number (665165065629).

Almost surely, 2^{1330330131257} is an apocalyptic number.

It is an amenable number.

1330330131257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330330131257 is an equidigital number, since it uses as much as digits as its factorization.

1330330131257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 32.

Adding to 1330330131257 its reverse (7521310330331), we get a palindrome (8851640461588).

The spelling of 1330330131257 in words is "one trillion, three hundred thirty billion, three hundred thirty million, one hundred thirty-one thousand, two hundred fifty-seven".