11101021009979 has 2 divisors, whose sum is σ = 11101021009980. Its totient is φ = 11101021009978.

The previous prime is 11101021009957. The next prime is 11101021010021. The reversal of 11101021009979 is 97990012010111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11101021009979 - 2²⁴ = 11101004232763 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101021005979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550510504989 + 5550510504990.

It is an arithmetic number, because the mean of its divisors is an integer number (5550510504990).

Almost surely, 2^{11101021009979} is an apocalyptic number.

11101021009979 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101021009979 is an equidigital number, since it uses as much as digits as its factorization.

11101021009979 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 11101021009979 in words is "eleven trillion, one hundred one billion, twenty-one million, nine thousand, nine hundred seventy-nine".