1281195346183 has 2 divisors, whose sum is σ = 1281195346184. Its totient is φ = 1281195346182.

The previous prime is 1281195346177. The next prime is 1281195346229. The reversal of 1281195346183 is 3816435911821.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1281195346183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1281195346183.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1281195346153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640597673091 + 640597673092.

It is an arithmetic number, because the mean of its divisors is an integer number (640597673092).

Almost surely, 2^{1281195346183} is an apocalyptic number.

1281195346183 is a deficient number, since it is larger than the sum of its proper divisors (1).

1281195346183 is an equidigital number, since it uses as much as digits as its factorization.

1281195346183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 52.

The spelling of 1281195346183 in words is "one trillion, two hundred eighty-one billion, one hundred ninety-five million, three hundred forty-six thousand, one hundred eighty-three".