21230011103033 has 16 divisors (see below), whose sum is σ = 21461963265936. Its totient is φ = 20998496486400.

The previous prime is 21230011103029. The next prime is 21230011103039. The reversal of 21230011103033 is 33030111003212.

It can be written as a sum of positive squares in 8 ways, for example, as 432790305424 + 20797220797609 = 657868^2 + 4560397^2 .

It is a cyclic number.

It is not a de Polignac number, because 21230011103033 - 2² = 21230011103029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21230011102996 and 21230011103014.

It is not an unprimeable number, because it can be changed into a prime (21230011103039) 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, 417288485 + ... + 417339357.

It is an arithmetic number, because the mean of its divisors is an integer number (1341372704121).

Almost surely, 2^{21230011103033} is an apocalyptic number.

It is an amenable number.

21230011103033 is a deficient number, since it is larger than the sum of its proper divisors (231952162903).

21230011103033 is a wasteful number, since it uses less digits than its factorization.

21230011103033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55084.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21230011103033 its reverse (33030111003212), we get a palindrome (54260122106245).

The spelling of 21230011103033 in words is "twenty-one trillion, two hundred thirty billion, eleven million, one hundred three thousand, thirty-three".