13231035220 has 48 divisors (see below), whose sum is σ = 30047834880. Its totient is φ = 4864841856.

The previous prime is 13231035193. The next prime is 13231035221. The reversal of 13231035220 is 2253013231.

It is a junction number, because it is equal to n+sod(n) for n = 13231035191 and 13231035200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231035221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44322 + ... + 168601.

It is an arithmetic number, because the mean of its divisors is an integer number (625996560).

Almost surely, 2^13231035220 is an apocalyptic number.

13231035220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231035220 is an abundant number, since it is smaller than the sum of its proper divisors (16816799660).

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

13231035220 is a wasteful number, since it uses less digits than its factorization.

13231035220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213184 (or 213182 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 13231035220 its reverse (2253013231), we get a palindrome (15484048451).

The spelling of 13231035220 in words is "thirteen billion, two hundred thirty-one million, thirty-five thousand, two hundred twenty".