21033023333241 has 4 divisors (see below), whose sum is σ = 28044031110992. Its totient is φ = 14022015555492.

The previous prime is 21033023333239. The next prime is 21033023333347. The reversal of 21033023333241 is 14233332033012.

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 not a de Polignac number, because 21033023333241 - 2¹ = 21033023333239 is a prime.

It is a super-2 number, since 2×21033023333241² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21033023333199 and 21033023333208.

It is not an unprimeable number, because it can be changed into a prime (21033023333741) 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, 3505503888871 + ... + 3505503888876.

It is an arithmetic number, because the mean of its divisors is an integer number (7011007777748).

Almost surely, 2^{21033023333241} is an apocalyptic number.

It is an amenable number.

21033023333241 is a deficient number, since it is larger than the sum of its proper divisors (7011007777751).

21033023333241 is an equidigital number, since it uses as much as digits as its factorization.

21033023333241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7011007777750.

The product of its (nonzero) digits is 23328, while the sum is 30.

Adding to 21033023333241 its reverse (14233332033012), we get a palindrome (35266355366253).

The spelling of 21033023333241 in words is "twenty-one trillion, thirty-three billion, twenty-three million, three hundred thirty-three thousand, two hundred forty-one".