45131455321 has 2 divisors, whose sum is σ = 45131455322. Its totient is φ = 45131455320.

The previous prime is 45131455253. The next prime is 45131455361. The reversal of 45131455321 is 12355413154.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28675696921 + 16455758400 = 169339^2 + 128280^2 .

It is a cyclic number.

It is not a de Polignac number, because 45131455321 - 2²³ = 45123066713 is a prime.

It is not a weakly prime, because it can be changed into another prime (45131455361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22565727660 + 22565727661.

It is an arithmetic number, because the mean of its divisors is an integer number (22565727661).

Almost surely, 2^45131455321 is an apocalyptic number.

It is an amenable number.

45131455321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45131455321 is an equidigital number, since it uses as much as digits as its factorization.

45131455321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 34.

Adding to 45131455321 its reverse (12355413154), we get a palindrome (57486868475).

The spelling of 45131455321 in words is "forty-five billion, one hundred thirty-one million, four hundred fifty-five thousand, three hundred twenty-one".