13003231332 has 144 divisors (see below), whose sum is σ = 39662566272. Its totient is φ = 3280273920.

The previous prime is 13003231331. The next prime is 13003231357. The reversal of 13003231332 is 23313230031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13003231299 and 13003231308.

It is not an unprimeable number, because it can be changed into a prime (13003231331) 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 47 ways as a sum of consecutive naturals, for example, 138832 + ... + 212792.

It is an arithmetic number, because the mean of its divisors is an integer number (275434488).

Almost surely, 2^13003231332 is an apocalyptic number.

13003231332 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 13003231332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19831283136).

13003231332 is an abundant number, since it is smaller than the sum of its proper divisors (26659334940).

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

13003231332 is a wasteful number, since it uses less digits than its factorization.

13003231332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74018 (or 74009 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 13003231332 its reverse (23313230031), we get a palindrome (36316461363).

The spelling of 13003231332 in words is "thirteen billion, three million, two hundred thirty-one thousand, three hundred thirty-two".