11121968243 has 2 divisors, whose sum is σ = 11121968244. Its totient is φ = 11121968242.

The previous prime is 11121968233. The next prime is 11121968323. The reversal of 11121968243 is 34286912111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11121968243 - 2¹⁴ = 11121951859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121968197 and 11121968206.

It is not a weakly prime, because it can be changed into another prime (11121968233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560984121 + 5560984122.

It is an arithmetic number, because the mean of its divisors is an integer number (5560984122).

Almost surely, 2^11121968243 is an apocalyptic number.

11121968243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121968243 is an equidigital number, since it uses as much as digits as its factorization.

11121968243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 38.

The spelling of 11121968243 in words is "eleven billion, one hundred twenty-one million, nine hundred sixty-eight thousand, two hundred forty-three".