1311034400197 has 2 divisors, whose sum is σ = 1311034400198. Its totient is φ = 1311034400196.

The previous prime is 1311034400173. The next prime is 1311034400233. The reversal of 1311034400197 is 7910044301131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1303309923876 + 7724476321 = 1141626^2 + 87889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311034400197 - 2¹⁵ = 1311034367429 is a prime.

It is a super-2 number, since 2×1311034400197² (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 (1311034400107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655517200098 + 655517200099.

It is an arithmetic number, because the mean of its divisors is an integer number (655517200099).

Almost surely, 2^{1311034400197} is an apocalyptic number.

It is an amenable number.

1311034400197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311034400197 is an equidigital number, since it uses as much as digits as its factorization.

1311034400197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The spelling of 1311034400197 in words is "one trillion, three hundred eleven billion, thirty-four million, four hundred thousand, one hundred ninety-seven".