13045021345 has 16 divisors (see below), whose sum is σ = 15881304960. Its totient is φ = 10284624000.

The previous prime is 13045021277. The next prime is 13045021351. The reversal of 13045021345 is 54312054031.

It is not a de Polignac number, because 13045021345 - 2¹⁷ = 13044890273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005661 + ... + 1018549.

It is an arithmetic number, because the mean of its divisors is an integer number (992581560).

Almost surely, 2^13045021345 is an apocalyptic number.

It is an amenable number.

13045021345 is a deficient number, since it is larger than the sum of its proper divisors (2836283615).

13045021345 is a wasteful number, since it uses less digits than its factorization.

13045021345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15816.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13045021345 its reverse (54312054031), we get a palindrome (67357075376).

The spelling of 13045021345 in words is "thirteen billion, forty-five million, twenty-one thousand, three hundred forty-five".