21030213320011 has 8 divisors (see below), whose sum is σ = 24525030111200. Its totient is φ = 18025897131144.

The previous prime is 21030213319979. The next prime is 21030213320057. The reversal of 21030213320011 is 11002331203012.

It is not a de Polignac number, because 21030213320011 - 2⁵ = 21030213319979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21030213324011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30656287296 + ... + 30656287981.

It is an arithmetic number, because the mean of its divisors is an integer number (3065628763900).

Almost surely, 2^{21030213320011} is an apocalyptic number.

21030213320011 is a deficient number, since it is larger than the sum of its proper divisors (3494816791189).

21030213320011 is an frugal number, since it uses more digits than its factorization.

21030213320011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61312575298 (or 61312575284 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21030213320011 its reverse (11002331203012), we get a palindrome (32032544523023).

The spelling of 21030213320011 in words is "twenty-one trillion, thirty billion, two hundred thirteen million, three hundred twenty thousand, eleven".