211101121201973 has 2 divisors, whose sum is σ = 211101121201974. Its totient is φ = 211101121201972.

The previous prime is 211101121201897. The next prime is 211101121202039. The reversal of 211101121201973 is 379102121101112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173234611307044 + 37866509894929 = 13161862^2 + 6153577^2 .

It is a cyclic number.

It is not a de Polignac number, because 211101121201973 - 2²⁶ = 211101054093109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211101121201273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105550560600986 + 105550560600987.

It is an arithmetic number, because the mean of its divisors is an integer number (105550560600987).

Almost surely, 2^{211101121201973} is an apocalyptic number.

It is an amenable number.

211101121201973 is a deficient number, since it is larger than the sum of its proper divisors (1).

211101121201973 is an equidigital number, since it uses as much as digits as its factorization.

211101121201973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 32.

The spelling of 211101121201973 in words is "two hundred eleven trillion, one hundred one billion, one hundred twenty-one million, two hundred one thousand, nine hundred seventy-three".