135524243312220 has 96 divisors (see below), whose sum is σ = 434221717160448. Its totient is φ = 30938102860032.

The previous prime is 135524243312219. The next prime is 135524243312267. The reversal of 135524243312220 is 22213342425531.

It is a congruent number.

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, 202097362 + ... + 202766841.

It is an arithmetic number, because the mean of its divisors is an integer number (4523142887088).

Almost surely, 2^{135524243312220} is an apocalyptic number.

135524243312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135524243312220 is an abundant number, since it is smaller than the sum of its proper divisors (298697473848228).

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

135524243312220 is a wasteful number, since it uses less digits than its factorization.

135524243312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404865019 (or 404865017 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 39.

Adding to 135524243312220 its reverse (22213342425531), we get a palindrome (157737585737751).

The spelling of 135524243312220 in words is "one hundred thirty-five trillion, five hundred twenty-four billion, two hundred forty-three million, three hundred twelve thousand, two hundred twenty".