13535305021 has 16 divisors (see below), whose sum is σ = 16541038080. Its totient is φ = 10811116800.

The previous prime is 13535304973. The next prime is 13535305027. The reversal of 13535305021 is 12050353531.

It is a cyclic number.

It is not a de Polignac number, because 13535305021 - 2³³ = 4945370429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13535305027) 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, 551061 + ... + 575098.

It is an arithmetic number, because the mean of its divisors is an integer number (1033814880).

Almost surely, 2^13535305021 is an apocalyptic number.

It is an amenable number.

13535305021 is a deficient number, since it is larger than the sum of its proper divisors (3005733059).

13535305021 is a wasteful number, since it uses less digits than its factorization.

13535305021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126284.

The product of its (nonzero) digits is 6750, while the sum is 28.

Adding to 13535305021 its reverse (12050353531), we get a palindrome (25585658552).

The spelling of 13535305021 in words is "thirteen billion, five hundred thirty-five million, three hundred five thousand, twenty-one".