13131434543232 has 64 divisors (see below), whose sum is σ = 34886147385600. Its totient is φ = 4376420219904.

The previous prime is 13131434543191. The next prime is 13131434543237. The reversal of 13131434543232 is 23234543413131.

It is a happy number.

13131434543232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×13131434543232³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (13131434543237) 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, 505507 + ... + 5149602.

It is an arithmetic number, because the mean of its divisors is an integer number (545096052900).

Almost surely, 2^{13131434543232} is an apocalyptic number.

13131434543232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13131434543232 is an abundant number, since it is smaller than the sum of its proper divisors (21754712842368).

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

13131434543232 is an equidigital number, since it uses as much as digits as its factorization.

13131434543232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5661173 (or 5661161 counting only the distinct ones).

The product of its digits is 311040, while the sum is 39.

Adding to 13131434543232 its reverse (23234543413131), we get a palindrome (36365977956363).

The spelling of 13131434543232 in words is "thirteen trillion, one hundred thirty-one billion, four hundred thirty-four million, five hundred forty-three thousand, two hundred thirty-two".