11021200111973 has 2 divisors, whose sum is σ = 11021200111974. Its totient is φ = 11021200111972.

The previous prime is 11021200111939. The next prime is 11021200112003. The reversal of 11021200111973 is 37911100212011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8362842692164 + 2658357419809 = 2891858^2 + 1630447^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021200111973 - 2³² = 11016905144677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021200111913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510600055986 + 5510600055987.

It is an arithmetic number, because the mean of its divisors is an integer number (5510600055987).

Almost surely, 2^{11021200111973} is an apocalyptic number.

It is an amenable number.

11021200111973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021200111973 is an equidigital number, since it uses as much as digits as its factorization.

11021200111973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 29.

Adding to 11021200111973 its reverse (37911100212011), we get a palindrome (48932300323984).

The spelling of 11021200111973 in words is "eleven trillion, twenty-one billion, two hundred million, one hundred eleven thousand, nine hundred seventy-three".