21110203230011 has 8 divisors (see below), whose sum is σ = 24639264560640. Its totient is φ = 17709471402408.

The previous prime is 21110203229881. The next prime is 21110203230019. The reversal of 21110203230011 is 11003230201112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21110203230011 - 2³⁸ = 20835325323067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110203230019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32082375401 + ... + 32082376058.

It is an arithmetic number, because the mean of its divisors is an integer number (3079908070080).

Almost surely, 2^{21110203230011} is an apocalyptic number.

21110203230011 is a deficient number, since it is larger than the sum of its proper divisors (3529061330629).

21110203230011 is an equidigital number, since it uses as much as digits as its factorization.

21110203230011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64164751513.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21110203230011 its reverse (11003230201112), we get a palindrome (32113433431123).

The spelling of 21110203230011 in words is "twenty-one trillion, one hundred ten billion, two hundred three million, two hundred thirty thousand, eleven".