13230911820 has 96 divisors (see below), whose sum is σ = 44567308800. Its totient is φ = 2865037824.

The previous prime is 13230911803. The next prime is 13230911821. The reversal of 13230911820 is 2811903231.

13230911820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (13230911821) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 821025 + ... + 836984.

It is an arithmetic number, because the mean of its divisors is an integer number (464242800).

Almost surely, 2^13230911820 is an apocalyptic number.

13230911820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13230911820 is an abundant number, since it is smaller than the sum of its proper divisors (31336396980).

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

13230911820 is a wasteful number, since it uses less digits than its factorization.

13230911820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658047 (or 1658045 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 13230911820 in words is "thirteen billion, two hundred thirty million, nine hundred eleven thousand, eight hundred twenty".