13531213542 has 32 divisors (see below), whose sum is σ = 33740169984. Its totient is φ = 3514600800.

The previous prime is 13531213483. The next prime is 13531213547. The reversal of 13531213542 is 24531213531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531213547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14643709 + ... + 14644632.

It is an arithmetic number, because the mean of its divisors is an integer number (1054380312).

Almost surely, 2^13531213542 is an apocalyptic number.

13531213542 is an abundant number, since it is smaller than the sum of its proper divisors (20208956442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13531213542 is a wasteful number, since it uses less digits than its factorization.

13531213542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29288364.

The product of its digits is 10800, while the sum is 30.

The spelling of 13531213542 in words is "thirteen billion, five hundred thirty-one million, two hundred thirteen thousand, five hundred forty-two".