445053133543321 has 4 divisors (see below), whose sum is σ = 468476982677200. Its totient is φ = 421629284409444.

The previous prime is 445053133543297. The next prime is 445053133543339. The reversal of 445053133543321 is 123345331350544.

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 445053133543321 - 2⁵ = 445053133543289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (445053133543721) 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, 11711924566911 + ... + 11711924566948.

It is an arithmetic number, because the mean of its divisors is an integer number (117119245669300).

Almost surely, 2^{445053133543321} is an apocalyptic number.

It is an amenable number.

445053133543321 is a deficient number, since it is larger than the sum of its proper divisors (23423849133879).

445053133543321 is a wasteful number, since it uses less digits than its factorization.

445053133543321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23423849133878.

The product of its (nonzero) digits is 3888000, while the sum is 46.

Adding to 445053133543321 its reverse (123345331350544), we get a palindrome (568398464893865).

The spelling of 445053133543321 in words is "four hundred forty-five trillion, fifty-three billion, one hundred thirty-three million, five hundred forty-three thousand, three hundred twenty-one".