1301311311197 has 2 divisors, whose sum is σ = 1301311311198. Its totient is φ = 1301311311196.

The previous prime is 1301311311191. The next prime is 1301311311257. The reversal of 1301311311197 is 7911131131031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 755406077881 + 545905233316 = 869141^2 + 738854^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301311311197 - 2¹⁸ = 1301311049053 is a prime.

It is a super-2 number, since 2×1301311311197² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301311311191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650655655598 + 650655655599.

It is an arithmetic number, because the mean of its divisors is an integer number (650655655599).

Almost surely, 2^{1301311311197} is an apocalyptic number.

It is an amenable number.

1301311311197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301311311197 is an equidigital number, since it uses as much as digits as its factorization.

1301311311197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 32.

The spelling of 1301311311197 in words is "one trillion, three hundred one billion, three hundred eleven million, three hundred eleven thousand, one hundred ninety-seven".