21110001003193 has 2 divisors, whose sum is σ = 21110001003194. Its totient is φ = 21110001003192.

The previous prime is 21110001003173. The next prime is 21110001003241. The reversal of 21110001003193 is 39130010001112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20800139554089 + 309861449104 = 4560717^2 + 556652^2 .

It is a cyclic number.

It is not a de Polignac number, because 21110001003193 - 2²⁵ = 21109967448761 is a prime.

It is not a weakly prime, because it can be changed into another prime (21110001003173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555000501596 + 10555000501597.

It is an arithmetic number, because the mean of its divisors is an integer number (10555000501597).

Almost surely, 2^{21110001003193} is an apocalyptic number.

It is an amenable number.

21110001003193 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110001003193 is an equidigital number, since it uses as much as digits as its factorization.

21110001003193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 21110001003193 in words is "twenty-one trillion, one hundred ten billion, one million, three thousand, one hundred ninety-three".