11011010978243 has 2 divisors, whose sum is σ = 11011010978244. Its totient is φ = 11011010978242.

The previous prime is 11011010978239. The next prime is 11011010978249. The reversal of 11011010978243 is 34287901011011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11011010978243 - 2² = 11011010978239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11011010978197 and 11011010978206.

It is not a weakly prime, because it can be changed into another prime (11011010978249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505505489121 + 5505505489122.

It is an arithmetic number, because the mean of its divisors is an integer number (5505505489122).

Almost surely, 2^{11011010978243} is an apocalyptic number.

11011010978243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011010978243 is an equidigital number, since it uses as much as digits as its factorization.

11011010978243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 38.

Adding to 11011010978243 its reverse (34287901011011), we get a palindrome (45298911989254).

The spelling of 11011010978243 in words is "eleven trillion, eleven billion, ten million, nine hundred seventy-eight thousand, two hundred forty-three".