21242433344019 has 8 divisors (see below), whose sum is σ = 28325831336400. Its totient is φ = 14160328790496.

The previous prime is 21242433344009. The next prime is 21242433344053. The reversal of 21242433344019 is 91044333424212.

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

It is not a de Polignac number, because 21242433344019 - 2⁵ = 21242433343987 is a prime.

It is a super-2 number, since 2×21242433344019² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21242433344009) 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, 323321392 + ... + 323387085.

It is an arithmetic number, because the mean of its divisors is an integer number (3540728917050).

Almost surely, 2^{21242433344019} is an apocalyptic number.

21242433344019 is a deficient number, since it is larger than the sum of its proper divisors (7083397992381).

21242433344019 is a wasteful number, since it uses less digits than its factorization.

21242433344019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646719429.

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 21242433344019 in words is "twenty-one trillion, two hundred forty-two billion, four hundred thirty-three million, three hundred forty-four thousand, nineteen".