21433341013 has 8 divisors (see below), whose sum is σ = 25064904128. Its totient is φ = 17944192224.

The previous prime is 21433340987. The next prime is 21433341031. The reversal of 21433341013 is 31014333412.

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

It is not a de Polignac number, because 21433341013 - 2²⁵ = 21399786581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21433341313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35603256 + ... + 35603857.

It is an arithmetic number, because the mean of its divisors is an integer number (3133113016).

Almost surely, 2^21433341013 is an apocalyptic number.

It is an amenable number.

21433341013 is a deficient number, since it is larger than the sum of its proper divisors (3631563115).

21433341013 is an equidigital number, since it uses as much as digits as its factorization.

21433341013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71207163.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21433341013 its reverse (31014333412), we get a palindrome (52447674425).

The spelling of 21433341013 in words is "twenty-one billion, four hundred thirty-three million, three hundred forty-one thousand, thirteen".