2045341513321 has 2 divisors, whose sum is σ = 2045341513322. Its totient is φ = 2045341513320.

The previous prime is 2045341513249. The next prime is 2045341513361. The reversal of 2045341513321 is 1233151435402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1969562434921 + 75779078400 = 1403411^2 + 275280^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045341513321 - 2¹¹ = 2045341511273 is a prime.

It is a super-2 number, since 2×2045341513321² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2045341513361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022670756660 + 1022670756661.

It is an arithmetic number, because the mean of its divisors is an integer number (1022670756661).

Almost surely, 2^{2045341513321} is an apocalyptic number.

It is an amenable number.

2045341513321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045341513321 is an equidigital number, since it uses as much as digits as its factorization.

2045341513321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 2045341513321 its reverse (1233151435402), we get a palindrome (3278492948723).

The spelling of 2045341513321 in words is "two trillion, forty-five billion, three hundred forty-one million, five hundred thirteen thousand, three hundred twenty-one".