13531343430 has 128 divisors (see below), whose sum is σ = 37490688000. Its totient is φ = 3091132800.

The previous prime is 13531343393. The next prime is 13531343431. The reversal of 13531343430 is 3434313531.

13531343430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531343431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1191921 + ... + 1203219.

It is an arithmetic number, because the mean of its divisors is an integer number (292896000).

Almost surely, 2^13531343430 is an apocalyptic number.

13531343430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13531343430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18745344000).

13531343430 is an abundant number, since it is smaller than the sum of its proper divisors (23959344570).

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

13531343430 is a wasteful number, since it uses less digits than its factorization.

13531343430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11530.

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 13531343430 its reverse (3434313531), we get a palindrome (16965656961).

The spelling of 13531343430 in words is "thirteen billion, five hundred thirty-one million, three hundred forty-three thousand, four hundred thirty".