45230221321 has 2 divisors, whose sum is σ = 45230221322. Its totient is φ = 45230221320.

The previous prime is 45230221319. The next prime is 45230221357. The reversal of 45230221321 is 12312203254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26053510921 + 19176710400 = 161411^2 + 138480^2 .

It is a cyclic number.

It is not a de Polignac number, because 45230221321 - 2¹ = 45230221319 is a prime.

Together with 45230221319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45230221921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22615110660 + 22615110661.

It is an arithmetic number, because the mean of its divisors is an integer number (22615110661).

Almost surely, 2^45230221321 is an apocalyptic number.

It is an amenable number.

45230221321 is a deficient number, since it is larger than the sum of its proper divisors (1).

45230221321 is an equidigital number, since it uses as much as digits as its factorization.

45230221321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 45230221321 its reverse (12312203254), we get a palindrome (57542424575).

The spelling of 45230221321 in words is "forty-five billion, two hundred thirty million, two hundred twenty-one thousand, three hundred twenty-one".