13220313132 has 48 divisors (see below), whose sum is σ = 33462811872. Its totient is φ = 4038090240.

The previous prime is 13220313059. The next prime is 13220313179. The reversal of 13220313132 is 23131302231.

It is a junction number, because it is equal to n+sod(n) for n = 13220313099 and 13220313108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287919 + ... + 330662.

It is an arithmetic number, because the mean of its divisors is an integer number (697141914).

Almost surely, 2^13220313132 is an apocalyptic number.

13220313132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13220313132 is an abundant number, since it is smaller than the sum of its proper divisors (20242498740).

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

13220313132 is a wasteful number, since it uses less digits than its factorization.

13220313132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618738 (or 618736 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13220313132 its reverse (23131302231), we get a palindrome (36351615363).

The spelling of 13220313132 in words is "thirteen billion, two hundred twenty million, three hundred thirteen thousand, one hundred thirty-two".