21441340333 has 8 divisors (see below), whose sum is σ = 24680680640. Its totient is φ = 18246072960.

The previous prime is 21441340231. The next prime is 21441340409. The reversal of 21441340333 is 33304314412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21441340333 - 2²¹ = 21439243181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21441340133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11017188 + ... + 11019133.

It is an arithmetic number, because the mean of its divisors is an integer number (3085085080).

Almost surely, 2^21441340333 is an apocalyptic number.

It is an amenable number.

21441340333 is a deficient number, since it is larger than the sum of its proper divisors (3239340307).

21441340333 is a wasteful number, since it uses less digits than its factorization.

21441340333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22036467.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 21441340333 its reverse (33304314412), we get a palindrome (54745654745).

The spelling of 21441340333 in words is "twenty-one billion, four hundred forty-one million, three hundred forty thousand, three hundred thirty-three".