450011321 has 4 divisors (see below), whose sum is σ = 450304512. Its totient is φ = 449718132.

The previous prime is 450011311. The next prime is 450011327. The reversal of 450011321 is 123110054.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123110054 = 2 ⋅61555027.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450011321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 450011321.

It is not an unprimeable number, because it can be changed into a prime (450011327) 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, 144281 + ... + 147366.

It is an arithmetic number, because the mean of its divisors is an integer number (112576128).

Almost surely, 2^450011321 is an apocalyptic number.

It is an amenable number.

450011321 is a deficient number, since it is larger than the sum of its proper divisors (293191).

450011321 is a wasteful number, since it uses less digits than its factorization.

450011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293190.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 450011321 is about 21213.4702724472. The cubic root of 450011321 is about 766.3158585538.

Adding to 450011321 its reverse (123110054), we get a palindrome (573121375).

The spelling of 450011321 in words is "four hundred fifty million, eleven thousand, three hundred twenty-one".