45132401321 has 4 divisors (see below), whose sum is σ = 51579887232. Its totient is φ = 38684915412.

The previous prime is 45132401311. The next prime is 45132401323. The reversal of 45132401321 is 12310423154.

It is a happy number.

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 45132401321 - 2¹⁸ = 45132139177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45132401323) 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, 3223742945 + ... + 3223742958.

It is an arithmetic number, because the mean of its divisors is an integer number (12894971808).

Almost surely, 2^45132401321 is an apocalyptic number.

It is an amenable number.

45132401321 is a deficient number, since it is larger than the sum of its proper divisors (6447485911).

45132401321 is an equidigital number, since it uses as much as digits as its factorization.

45132401321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6447485910.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 45132401321 its reverse (12310423154), we get a palindrome (57442824475).

The spelling of 45132401321 in words is "forty-five billion, one hundred thirty-two million, four hundred one thousand, three hundred twenty-one".