11200300021 has 4 divisors (see below), whose sum is σ = 11201604844. Its totient is φ = 11198995200.

The previous prime is 11200299977. The next prime is 11200300057. The reversal of 11200300021 is 12000300211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 161645796 + 11038654225 = 12714^2 + 105065^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200300021 - 2²³ = 11191911413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200299980 and 11200300007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200300121) 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 in 3 ways as a sum of consecutive naturals, for example, 639450 + ... + 656731.

It is an arithmetic number, because the mean of its divisors is an integer number (2800401211).

Almost surely, 2^11200300021 is an apocalyptic number.

It is an amenable number.

11200300021 is a deficient number, since it is larger than the sum of its proper divisors (1304823).

11200300021 is an equidigital number, since it uses as much as digits as its factorization.

11200300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304822.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 11200300021 its reverse (12000300211), we get a palindrome (23200600232).

The spelling of 11200300021 in words is "eleven billion, two hundred million, three hundred thousand, twenty-one".