11101010121973 has 2 divisors, whose sum is σ = 11101010121974. Its totient is φ = 11101010121972.

The previous prime is 11101010121959. The next prime is 11101010122009. The reversal of 11101010121973 is 37912101010111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10647155948004 + 453854173969 = 3262998^2 + 673687^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101010121973 - 2¹⁷ = 11101009990901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11101010124973) 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, 5550505060986 + 5550505060987.

It is an arithmetic number, because the mean of its divisors is an integer number (5550505060987).

Almost surely, 2^{11101010121973} is an apocalyptic number.

It is an amenable number.

11101010121973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101010121973 is an equidigital number, since it uses as much as digits as its factorization.

11101010121973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 28.

The spelling of 11101010121973 in words is "eleven trillion, one hundred one billion, ten million, one hundred twenty-one thousand, nine hundred seventy-three".