13121323232 has 12 divisors (see below), whose sum is σ = 25832605176. Its totient is φ = 6560661600.

The previous prime is 13121323217. The next prime is 13121323247. The reversal of 13121323232 is 23232312131.

It is an interprime number because it is at equal distance from previous prime (13121323217) and next prime (13121323247).

It is a junction number, because it is equal to n+sod(n) for n = 13121323198 and 13121323207.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 205020644 + ... + 205020707.

It is an arithmetic number, because the mean of its divisors is an integer number (2152717098).

Almost surely, 2^13121323232 is an apocalyptic number.

It is an amenable number.

13121323232 is a deficient number, since it is larger than the sum of its proper divisors (12711281944).

13121323232 is an equidigital number, since it uses as much as digits as its factorization.

13121323232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410041361 (or 410041353 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 13121323232 its reverse (23232312131), we get a palindrome (36353635363).

The spelling of 13121323232 in words is "thirteen billion, one hundred twenty-one million, three hundred twenty-three thousand, two hundred thirty-two".