13235420000 has 120 divisors (see below), whose sum is σ = 35521810632. Its totient is φ = 4812800000.

The previous prime is 13235419993. The next prime is 13235420017. The reversal of 13235420000 is 2453231.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 189920 + ... + 250080.

Almost surely, 2^13235420000 is an apocalyptic number.

13235420000 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 13235420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17760905316).

13235420000 is an abundant number, since it is smaller than the sum of its proper divisors (22286390632).

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

13235420000 is an equidigital number, since it uses as much as digits as its factorization.

13235420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60202 (or 60179 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 13235420000 its reverse (2453231), we get a palindrome (13237873231).

The spelling of 13235420000 in words is "thirteen billion, two hundred thirty-five million, four hundred twenty thousand".