11011001209979 has 2 divisors, whose sum is σ = 11011001209980. Its totient is φ = 11011001209978.

The previous prime is 11011001209973. The next prime is 11011001210003. The reversal of 11011001209979 is 97990210011011.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (97990210011011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011001209979 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011001209973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505500604989 + 5505500604990.

It is an arithmetic number, because the mean of its divisors is an integer number (5505500604990).

Almost surely, 2^{11011001209979} is an apocalyptic number.

11011001209979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011001209979 is an equidigital number, since it uses as much as digits as its factorization.

11011001209979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 41.

The spelling of 11011001209979 in words is "eleven trillion, eleven billion, one million, two hundred nine thousand, nine hundred seventy-nine".