21103320033311 has 8 divisors (see below), whose sum is σ = 21124784493648. Its totient is φ = 21081863880000.

The previous prime is 21103320033227. The next prime is 21103320033331. The reversal of 21103320033311 is 11333002330112.

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 21103320033311 - 2³⁴ = 21086140164127 is a prime.

It is a super-2 number, since 2×21103320033311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103320033331) 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, 3013001 + ... + 7161341.

It is an arithmetic number, because the mean of its divisors is an integer number (2640598061706).

Almost surely, 2^{21103320033311} is an apocalyptic number.

21103320033311 is a deficient number, since it is larger than the sum of its proper divisors (21464460337).

21103320033311 is a wasteful number, since it uses less digits than its factorization.

21103320033311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153513.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 21103320033311 its reverse (11333002330112), we get a palindrome (32436322363423).

The spelling of 21103320033311 in words is "twenty-one trillion, one hundred three billion, three hundred twenty million, thirty-three thousand, three hundred eleven".