1183999654361 has 2 divisors, whose sum is σ = 1183999654362. Its totient is φ = 1183999654360.

The previous prime is 1183999654349. The next prime is 1183999654469. The reversal of 1183999654361 is 1634569993811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1160112097225 + 23887557136 = 1077085^2 + 154556^2 .

It is an emirp because it is prime and its reverse (1634569993811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1183999654361 - 2¹⁸ = 1183999392217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1183999656361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 591999827180 + 591999827181.

It is an arithmetic number, because the mean of its divisors is an integer number (591999827181).

Almost surely, 2^{1183999654361} is an apocalyptic number.

It is an amenable number.

1183999654361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1183999654361 is an equidigital number, since it uses as much as digits as its factorization.

1183999654361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37791360, while the sum is 65.

The spelling of 1183999654361 in words is "one trillion, one hundred eighty-three billion, nine hundred ninety-nine million, six hundred fifty-four thousand, three hundred sixty-one".