21100030330011 has 16 divisors (see below), whose sum is σ = 29103608336160. Its totient is φ = 13581573546240.

The previous prime is 21100030329979. The next prime is 21100030330031. The reversal of 21100030330011 is 11003303000112.

It is not a de Polignac number, because 21100030330011 - 2⁵ = 21100030329979 is a prime.

It is a super-2 number, since 2×21100030330011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21100030330031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41603031 + ... + 42107151.

It is an arithmetic number, because the mean of its divisors is an integer number (1818975521010).

Almost surely, 2^{21100030330011} is an apocalyptic number.

21100030330011 is a deficient number, since it is larger than the sum of its proper divisors (8003578006149).

21100030330011 is a wasteful number, since it uses less digits than its factorization.

21100030330011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985246.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21100030330011 its reverse (11003303000112), we get a palindrome (32103333330123).

The spelling of 21100030330011 in words is "twenty-one trillion, one hundred billion, thirty million, three hundred thirty thousand, eleven".