21241033033 has 16 divisors (see below), whose sum is σ = 24507267840. Its totient is φ = 18206974800.

The previous prime is 21241033019. The next prime is 21241033049. The reversal of 21241033033 is 33033014212.

It is a cyclic number.

It is not a de Polignac number, because 21241033033 - 2¹³ = 21241024841 is a prime.

21241033033 is a modest number, since divided by 33033 gives 21241 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 21241032995 and 21241033013.

It is not an unprimeable number, because it can be changed into a prime (21241033633) 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, 196735 + ... + 284932.

It is an arithmetic number, because the mean of its divisors is an integer number (1531704240).

Almost surely, 2^21241033033 is an apocalyptic number.

It is an amenable number.

21241033033 is a deficient number, since it is larger than the sum of its proper divisors (3266234807).

21241033033 is a wasteful number, since it uses less digits than its factorization.

21241033033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481908.

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

Adding to 21241033033 its reverse (33033014212), we get a palindrome (54274047245).

The spelling of 21241033033 in words is "twenty-one billion, two hundred forty-one million, thirty-three thousand, thirty-three".