13531143206 has 16 divisors (see below), whose sum is σ = 23363128320. Its totient is φ = 5757340680.

The previous prime is 13531143181. The next prime is 13531143209. The reversal of 13531143206 is 60234113531.

It is a super-2 number, since 2×13531143206² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531143209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3474710 + ... + 3478601.

It is an arithmetic number, because the mean of its divisors is an integer number (1460195520).

Almost surely, 2^13531143206 is an apocalyptic number.

13531143206 is a deficient number, since it is larger than the sum of its proper divisors (9831985114).

13531143206 is a wasteful number, since it uses less digits than its factorization.

13531143206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6953459.

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 13531143206 its reverse (60234113531), we get a palindrome (73765256737).

The spelling of 13531143206 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-three thousand, two hundred six".