13531202542 has 64 divisors (see below), whose sum is σ = 25002432000. Its totient is φ = 5404291200.

The previous prime is 13531202533. The next prime is 13531202543. The reversal of 13531202542 is 24520213531.

It is a self number, because there is not a number n which added to its sum of digits gives 13531202542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531202543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1383084 + ... + 1392832.

It is an arithmetic number, because the mean of its divisors is an integer number (390663000).

Almost surely, 2^13531202542 is an apocalyptic number.

13531202542 is a deficient number, since it is larger than the sum of its proper divisors (11471229458).

13531202542 is a wasteful number, since it uses less digits than its factorization.

13531202542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009.

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

The spelling of 13531202542 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, five hundred forty-two".