21233131020033 has 4 divisors (see below), whose sum is σ = 28310841360048. Its totient is φ = 14155420680020.

The previous prime is 21233131020011. The next prime is 21233131020053. The reversal of 21233131020033 is 33002013133212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21233131020033 - 2²⁰ = 21233129971457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21233131019985 and 21233131020012.

It is not an unprimeable number, because it can be changed into a prime (21233131020053) 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, 3538855170003 + ... + 3538855170008.

It is an arithmetic number, because the mean of its divisors is an integer number (7077710340012).

Almost surely, 2^{21233131020033} is an apocalyptic number.

It is an amenable number.

21233131020033 is a deficient number, since it is larger than the sum of its proper divisors (7077710340015).

21233131020033 is an equidigital number, since it uses as much as digits as its factorization.

21233131020033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077710340014.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21233131020033 its reverse (33002013133212), we get a palindrome (54235144153245).

The spelling of 21233131020033 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred thirty-one million, twenty thousand, thirty-three".