21103232200033 has 4 divisors (see below), whose sum is σ = 21185345944260. Its totient is φ = 21021118455808.

The previous prime is 21103232200031. The next prime is 21103232200093. The reversal of 21103232200033 is 33000223230112.

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 17867723442529 + 3235508757504 = 4227023^2 + 1798752^2 .

It is a cyclic number.

It is not a de Polignac number, because 21103232200033 - 2¹ = 21103232200031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21103232199977 and 21103232200013.

It is not an unprimeable number, because it can be changed into a prime (21103232200031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41056871728 + ... + 41056872241.

It is an arithmetic number, because the mean of its divisors is an integer number (5296336486065).

Almost surely, 2^{21103232200033} is an apocalyptic number.

It is an amenable number.

21103232200033 is a deficient number, since it is larger than the sum of its proper divisors (82113744227).

21103232200033 is an equidigital number, since it uses as much as digits as its factorization.

21103232200033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82113744226.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21103232200033 its reverse (33000223230112), we get a palindrome (54103455430145).

The spelling of 21103232200033 in words is "twenty-one trillion, one hundred three billion, two hundred thirty-two million, two hundred thousand, thirty-three".