13313220032 has 84 divisors (see below), whose sum is σ = 30787756560. Its totient is φ = 5695248384.

The previous prime is 13313220001. The next prime is 13313220071. The reversal of 13313220032 is 23002231331.

It is a junction number, because it is equal to n+sod(n) for n = 13313219986 and 13313220013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1856069 + ... + 1863227.

Almost surely, 2^13313220032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13313220032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15393878280).

13313220032 is an abundant number, since it is smaller than the sum of its proper divisors (17474536528).

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

13313220032 is an equidigital number, since it uses as much as digits as its factorization.

13313220032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778 (or 7761 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13313220032 its reverse (23002231331), we get a palindrome (36315451363).

The spelling of 13313220032 in words is "thirteen billion, three hundred thirteen million, two hundred twenty thousand, thirty-two".