1303313430553 has 2 divisors, whose sum is σ = 1303313430554. Its totient is φ = 1303313430552.

The previous prime is 1303313430541. The next prime is 1303313430569. The reversal of 1303313430553 is 3550343133031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1219935713049 + 83377717504 = 1104507^2 + 288752^2 .

It is an emirp because it is prime and its reverse (3550343133031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1303313430553 - 2²⁵ = 1303279876121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1303313430583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651656715276 + 651656715277.

It is an arithmetic number, because the mean of its divisors is an integer number (651656715277).

Almost surely, 2^{1303313430553} is an apocalyptic number.

It is an amenable number.

1303313430553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303313430553 is an equidigital number, since it uses as much as digits as its factorization.

1303313430553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 34.

Adding to 1303313430553 its reverse (3550343133031), we get a palindrome (4853656563584).

The spelling of 1303313430553 in words is "one trillion, three hundred three billion, three hundred thirteen million, four hundred thirty thousand, five hundred fifty-three".