1199178130243 has 2 divisors, whose sum is σ = 1199178130244. Its totient is φ = 1199178130242.

The previous prime is 1199178130223. The next prime is 1199178130247. The reversal of 1199178130243 is 3420318719911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1199178130243 - 2³³ = 1190588195651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1199178130247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599589065121 + 599589065122.

It is an arithmetic number, because the mean of its divisors is an integer number (599589065122).

Almost surely, 2^{1199178130243} is an apocalyptic number.

1199178130243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1199178130243 is an equidigital number, since it uses as much as digits as its factorization.

1199178130243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 49.

The spelling of 1199178130243 in words is "one trillion, one hundred ninety-nine billion, one hundred seventy-eight million, one hundred thirty thousand, two hundred forty-three".