1305430003345 has 16 divisors (see below), whose sum is σ = 1687044134160. Its totient is φ = 963994477824.

The previous prime is 1305430003343. The next prime is 1305430003369. The reversal of 1305430003345 is 5433000345031.

It can be written as a sum of positive squares in 8 ways, for example, as 521525175889 + 783904827456 = 722167^2 + 885384^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305430003345 - 2¹ = 1305430003343 is a prime.

It is a super-2 number, since 2×1305430003345² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1305430003343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5446491 + ... + 5681119.

It is an arithmetic number, because the mean of its divisors is an integer number (105440258385).

Almost surely, 2^{1305430003345} is an apocalyptic number.

It is an amenable number.

1305430003345 is a deficient number, since it is larger than the sum of its proper divisors (381614130815).

1305430003345 is a wasteful number, since it uses less digits than its factorization.

1305430003345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320244.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 1305430003345 its reverse (5433000345031), we get a palindrome (6738430348376).

The spelling of 1305430003345 in words is "one trillion, three hundred five billion, four hundred thirty million, three thousand, three hundred forty-five".