13122431232 has 36 divisors (see below), whose sum is σ = 34924806000. Its totient is φ = 4374143488.

The previous prime is 13122431207. The next prime is 13122431239. The reversal of 13122431232 is 23213422131.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 (13122431239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8542482 + ... + 8544017.

It is an arithmetic number, because the mean of its divisors is an integer number (970133500).

Almost surely, 2^13122431232 is an apocalyptic number.

13122431232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13122431232 is an abundant number, since it is smaller than the sum of its proper divisors (21802374768).

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

13122431232 is an equidigital number, since it uses as much as digits as its factorization.

13122431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17086518 (or 17086504 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 13122431232 its reverse (23213422131), we get a palindrome (36335853363).

The spelling of 13122431232 in words is "thirteen billion, one hundred twenty-two million, four hundred thirty-one thousand, two hundred thirty-two".