13220432313232 has 20 divisors (see below), whose sum is σ = 25801555403916. Its totient is φ = 6561966402560.

The previous prime is 13220432313211. The next prime is 13220432313239. The reversal of 13220432313232 is 23231323402231.

13220432313232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 9509353708176 + 3711078605056 = 3083724^2 + 1926416^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13220432313194 and 13220432313203.

It is not an unprimeable number, because it can be changed into a prime (13220432313239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3015607369 + ... + 3015611752.

Almost surely, 2^{13220432313232} is an apocalyptic number.

It is an amenable number.

13220432313232 is a deficient number, since it is larger than the sum of its proper divisors (12581123090684).

13220432313232 is a wasteful number, since it uses less digits than its factorization.

13220432313232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6031219266 (or 6031219260 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 13220432313232 its reverse (23231323402231), we get a palindrome (36451755715463).

The spelling of 13220432313232 in words is "thirteen trillion, two hundred twenty billion, four hundred thirty-two million, three hundred thirteen thousand, two hundred thirty-two".