13021346545 has 16 divisors (see below), whose sum is σ = 16144063488. Its totient is φ = 10074818880.

The previous prime is 13021346543. The next prime is 13021346561. The reversal of 13021346545 is 54564312031.

It is not a de Polignac number, because 13021346545 - 2¹ = 13021346543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13021346545.

It is not an unprimeable number, because it can be changed into a prime (13021346543) 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, 179841 + ... + 241630.

It is an arithmetic number, because the mean of its divisors is an integer number (1009003968).

Almost surely, 2^13021346545 is an apocalyptic number.

It is an amenable number.

13021346545 is a deficient number, since it is larger than the sum of its proper divisors (3122716943).

13021346545 is a wasteful number, since it uses less digits than its factorization.

13021346545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421680.

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

Adding to 13021346545 its reverse (54564312031), we get a palindrome (67585658576).

The spelling of 13021346545 in words is "thirteen billion, twenty-one million, three hundred forty-six thousand, five hundred forty-five".