16442024123321 has 4 divisors (see below), whose sum is σ = 16442044885392. Its totient is φ = 16442003361252.

The previous prime is 16442024123293. The next prime is 16442024123347. The reversal of 16442024123321 is 12332142024461.

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 a cyclic number.

It is not a de Polignac number, because 16442024123321 - 2³⁰ = 16440950381497 is a prime.

It is a super-3 number, since 3×16442024123321³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16442324123321) 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, 9144011 + ... + 10793376.

It is an arithmetic number, because the mean of its divisors is an integer number (4110511221348).

Almost surely, 2^{16442024123321} is an apocalyptic number.

It is an amenable number.

16442024123321 is a deficient number, since it is larger than the sum of its proper divisors (20762071).

16442024123321 is an equidigital number, since it uses as much as digits as its factorization.

16442024123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20762070.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 16442024123321 its reverse (12332142024461), we get a palindrome (28774166147782).

The spelling of 16442024123321 in words is "sixteen trillion, four hundred forty-two billion, twenty-four million, one hundred twenty-three thousand, three hundred twenty-one".