13211230340 has 96 divisors (see below), whose sum is σ = 34647782400. Its totient is φ = 4110837120.

The previous prime is 13211230273. The next prime is 13211230387. The reversal of 13211230340 is 4303211231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 946331 + ... + 960189.

It is an arithmetic number, because the mean of its divisors is an integer number (360914400).

Almost surely, 2^13211230340 is an apocalyptic number.

13211230340 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 13211230340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17323891200).

13211230340 is an abundant number, since it is smaller than the sum of its proper divisors (21436552060).

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

13211230340 is a wasteful number, since it uses less digits than its factorization.

13211230340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14505 (or 14503 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13211230340 its reverse (4303211231), we get a palindrome (17514441571).

The spelling of 13211230340 in words is "thirteen billion, two hundred eleven million, two hundred thirty thousand, three hundred forty".