135441232320 has 56 divisors (see below), whose sum is σ = 430025915664. Its totient is φ = 36117661696.

The previous prime is 135441232307. The next prime is 135441232327. The reversal of 135441232320 is 23232144531.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135441232327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70541349 + ... + 70543268.

Almost surely, 2^135441232320 is an apocalyptic number.

135441232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135441232320 is an abundant number, since it is smaller than the sum of its proper divisors (294584683344).

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

135441232320 is a wasteful number, since it uses less digits than its factorization.

135441232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141084637 (or 141084627 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 135441232320 its reverse (23232144531), we get a palindrome (158673376851).

The spelling of 135441232320 in words is "one hundred thirty-five billion, four hundred forty-one million, two hundred thirty-two thousand, three hundred twenty".