13531202239 has 8 divisors (see below), whose sum is σ = 13867580160. Its totient is φ = 13198951896.

The previous prime is 13531202231. The next prime is 13531202263. The reversal of 13531202239 is 93220213531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13531202239 - 2³ = 13531202231 is a prime.

It is a super-2 number, since 2×13531202239² (a number of 21 digits) contains 22 as substring.

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 13531202239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531202231) 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, 1025257 + ... + 1038370.

It is an arithmetic number, because the mean of its divisors is an integer number (1733447520).

Almost surely, 2^13531202239 is an apocalyptic number.

13531202239 is a deficient number, since it is larger than the sum of its proper divisors (336377921).

13531202239 is an equidigital number, since it uses as much as digits as its factorization.

13531202239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063789.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 13531202239 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, two hundred thirty-nine".