1111000209973 has 2 divisors, whose sum is σ = 1111000209974. Its totient is φ = 1111000209972.

The previous prime is 1111000209971. The next prime is 1111000210039. The reversal of 1111000209973 is 3799020001111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 751746223089 + 359253986884 = 867033^2 + 599378^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111000209973 - 2¹ = 1111000209971 is a prime.

Together with 1111000209971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111000209971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555500104986 + 555500104987.

It is an arithmetic number, because the mean of its divisors is an integer number (555500104987).

Almost surely, 2^{1111000209973} is an apocalyptic number.

It is an amenable number.

1111000209973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111000209973 is an equidigital number, since it uses as much as digits as its factorization.

1111000209973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 34.

The spelling of 1111000209973 in words is "one trillion, one hundred eleven billion, two hundred nine thousand, nine hundred seventy-three".