13542235212 has 96 divisors (see below), whose sum is σ = 35721907200. Its totient is φ = 3955302400.

The previous prime is 13542235211. The next prime is 13542235219. The reversal of 13542235212 is 21253224531.

It is a self number, because there is not a number n which added to its sum of digits gives 13542235212.

It is not an unprimeable number, because it can be changed into a prime (13542235211) 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, 2450989 + ... + 2456507.

It is an arithmetic number, because the mean of its divisors is an integer number (372103200).

Almost surely, 2^13542235212 is an apocalyptic number.

13542235212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13542235212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17860953600).

13542235212 is an abundant number, since it is smaller than the sum of its proper divisors (22179671988).

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

13542235212 is a wasteful number, since it uses less digits than its factorization.

13542235212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6207 (or 6205 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

Adding to 13542235212 its reverse (21253224531), we get a palindrome (34795459743).

The spelling of 13542235212 in words is "thirteen billion, five hundred forty-two million, two hundred thirty-five thousand, two hundred twelve".