11011020199973 has 2 divisors, whose sum is σ = 11011020199974. Its totient is φ = 11011020199972.

The previous prime is 11011020199961. The next prime is 11011020200057. The reversal of 11011020199973 is 37999102011011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11009011188289 + 2009011684 = 3317983^2 + 44822^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011020199973 - 2⁸ = 11011020199717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011020199903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505510099986 + 5505510099987.

It is an arithmetic number, because the mean of its divisors is an integer number (5505510099987).

Almost surely, 2^{11011020199973} is an apocalyptic number.

It is an amenable number.

11011020199973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011020199973 is an equidigital number, since it uses as much as digits as its factorization.

11011020199973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 44.

The spelling of 11011020199973 in words is "eleven trillion, eleven billion, twenty million, one hundred ninety-nine thousand, nine hundred seventy-three".