13230231220 has 24 divisors (see below), whose sum is σ = 27785721600. Its totient is φ = 5291666592.

The previous prime is 13230231211. The next prime is 13230231233. The reversal of 13230231220 is 2213203231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378441 + ... + 411919.

It is an arithmetic number, because the mean of its divisors is an integer number (1157738400).

Almost surely, 2^13230231220 is an apocalyptic number.

13230231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13230231220 is an abundant number, since it is smaller than the sum of its proper divisors (14555490380).

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

13230231220 is a wasteful number, since it uses less digits than its factorization.

13230231220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53247 (or 53245 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13230231220 its reverse (2213203231), we get a palindrome (15443434451).

The spelling of 13230231220 in words is "thirteen billion, two hundred thirty million, two hundred thirty-one thousand, two hundred twenty".