13231212132 has 24 divisors (see below), whose sum is σ = 32688877536. Its totient is φ = 4150968448.

The previous prime is 13231212119. The next prime is 13231212133. The reversal of 13231212132 is 23121213231.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 13231212099 and 13231212108.

It is not an unprimeable number, because it can be changed into a prime (13231212133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32429238 + ... + 32429645.

It is an arithmetic number, because the mean of its divisors is an integer number (1362036564).

Almost surely, 2^13231212132 is an apocalyptic number.

13231212132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13231212132 is an abundant number, since it is smaller than the sum of its proper divisors (19457665404).

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

13231212132 is a wasteful number, since it uses less digits than its factorization.

13231212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64858907 (or 64858905 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 13231212132 its reverse (23121213231), we get a palindrome (36352425363).

The spelling of 13231212132 in words is "thirteen billion, two hundred thirty-one million, two hundred twelve thousand, one hundred thirty-two".