11910229979 has 2 divisors, whose sum is σ = 11910229980. Its totient is φ = 11910229978.

The previous prime is 11910229949. The next prime is 11910230021. The reversal of 11910229979 is 97992201911.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11910229979 is a prime.

It is not a weakly prime, because it can be changed into another prime (11910229939) 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, 5955114989 + 5955114990.

It is an arithmetic number, because the mean of its divisors is an integer number (5955114990).

Almost surely, 2^11910229979 is an apocalyptic number.

11910229979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11910229979 is an equidigital number, since it uses as much as digits as its factorization.

11910229979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 50.

The spelling of 11910229979 in words is "eleven billion, nine hundred ten million, two hundred twenty-nine thousand, nine hundred seventy-nine".