1245311453017 has 2 divisors, whose sum is σ = 1245311453018. Its totient is φ = 1245311453016.

The previous prime is 1245311452999. The next prime is 1245311453053. The reversal of 1245311453017 is 7103541135421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 869032263961 + 376279189056 = 932219^2 + 613416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1245311453017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1245311453117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622655726508 + 622655726509.

It is an arithmetic number, because the mean of its divisors is an integer number (622655726509).

Almost surely, 2^{1245311453017} is an apocalyptic number.

It is an amenable number.

1245311453017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245311453017 is an equidigital number, since it uses as much as digits as its factorization.

1245311453017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

Adding to 1245311453017 its reverse (7103541135421), we get a palindrome (8348852588438).

The spelling of 1245311453017 in words is "one trillion, two hundred forty-five billion, three hundred eleven million, four hundred fifty-three thousand, seventeen".