45003012321 has 4 divisors (see below), whose sum is σ = 60004016432. Its totient is φ = 30002008212.

The previous prime is 45003012293. The next prime is 45003012367. The reversal of 45003012321 is 12321030054.

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 not a de Polignac number, because 45003012321 - 2¹⁰ = 45003011297 is a prime.

It is a super-2 number, since 2×45003012321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45003012371) 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 3 ways as a sum of consecutive naturals, for example, 7500502051 + ... + 7500502056.

It is an arithmetic number, because the mean of its divisors is an integer number (15001004108).

Almost surely, 2^45003012321 is an apocalyptic number.

It is an amenable number.

45003012321 is a deficient number, since it is larger than the sum of its proper divisors (15001004111).

45003012321 is a wasteful number, since it uses less digits than its factorization.

45003012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15001004110.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 45003012321 its reverse (12321030054), we get a palindrome (57324042375).

The spelling of 45003012321 in words is "forty-five billion, three million, twelve thousand, three hundred twenty-one".