13031220220 has 24 divisors (see below), whose sum is σ = 27396802944. Its totient is φ = 5206537536.

The previous prime is 13031220197. The next prime is 13031220263. The reversal of 13031220220 is 2202213031.

13031220220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13031220194 and 13031220203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353932 + ... + 389011.

It is an arithmetic number, because the mean of its divisors is an integer number (1141533456).

Almost surely, 2^13031220220 is an apocalyptic number.

13031220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031220220 is an abundant number, since it is smaller than the sum of its proper divisors (14365582724).

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

13031220220 is a wasteful number, since it uses less digits than its factorization.

13031220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743829 (or 743827 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13031220220 its reverse (2202213031), we get a palindrome (15233433251).

The spelling of 13031220220 in words is "thirteen billion, thirty-one million, two hundred twenty thousand, two hundred twenty".