13230421000 has 64 divisors (see below), whose sum is σ = 31016072880. Its totient is φ = 5282444800.

The previous prime is 13230420991. The next prime is 13230421019. The reversal of 13230421000 is 12403231.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 29789764 + 13200631236 = 5458^2 + 114894^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545124 + ... + 568876.

Almost surely, 2^13230421000 is an apocalyptic number.

13230421000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13230421000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15508036440).

13230421000 is an abundant number, since it is smaller than the sum of its proper divisors (17785651880).

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

13230421000 is a wasteful number, since it uses less digits than its factorization.

13230421000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24331 (or 24317 counting only the distinct ones).

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

Adding to 13230421000 its reverse (12403231), we get a palindrome (13242824231).

The spelling of 13230421000 in words is "thirteen billion, two hundred thirty million, four hundred twenty-one thousand".