13131331332 has 48 divisors (see below), whose sum is σ = 35162236032. Its totient is φ = 3736235520.

The previous prime is 13131331331. The next prime is 13131331349. The reversal of 13131331332 is 23313313131.

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

It is not an unprimeable number, because it can be changed into a prime (13131331331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304083 + ... + 344570.

It is an arithmetic number, because the mean of its divisors is an integer number (732546584).

Almost surely, 2^13131331332 is an apocalyptic number.

13131331332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13131331332 is an abundant number, since it is smaller than the sum of its proper divisors (22030904700).

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

13131331332 is a wasteful number, since it uses less digits than its factorization.

13131331332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648908 (or 648906 counting only the distinct ones).

The product of its digits is 1458, while the sum is 24.

Adding to 13131331332 its reverse (23313313131), we get a palindrome (36444644463).

The spelling of 13131331332 in words is "thirteen billion, one hundred thirty-one million, three hundred thirty-one thousand, three hundred thirty-two".