1031320231297 has 2 divisors, whose sum is σ = 1031320231298. Its totient is φ = 1031320231296.

The previous prime is 1031320231289. The next prime is 1031320231397. The reversal of 1031320231297 is 7921320231301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 995277588496 + 36042642801 = 997636^2 + 189849^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031320231297 - 2³ = 1031320231289 is a prime.

It is a super-3 number, since 3×1031320231297³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1031320231397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515660115648 + 515660115649.

It is an arithmetic number, because the mean of its divisors is an integer number (515660115649).

Almost surely, 2^{1031320231297} is an apocalyptic number.

It is an amenable number.

1031320231297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031320231297 is an equidigital number, since it uses as much as digits as its factorization.

1031320231297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

Adding to 1031320231297 its reverse (7921320231301), we get a palindrome (8952640462598).

The spelling of 1031320231297 in words is "one trillion, thirty-one billion, three hundred twenty million, two hundred thirty-one thousand, two hundred ninety-seven".