135321130220 has 24 divisors (see below), whose sum is σ = 286830213264. Its totient is φ = 53622577856.

The previous prime is 135321130169. The next prime is 135321130283. The reversal of 135321130220 is 22031123531.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31614947 + ... + 31619226.

It is an arithmetic number, because the mean of its divisors is an integer number (11951258886).

Almost surely, 2^135321130220 is an apocalyptic number.

135321130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135321130220 is an abundant number, since it is smaller than the sum of its proper divisors (151509083044).

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

135321130220 is a wasteful number, since it uses less digits than its factorization.

135321130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63234289 (or 63234287 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 135321130220 its reverse (22031123531), we get a palindrome (157352253751).

The spelling of 135321130220 in words is "one hundred thirty-five billion, three hundred twenty-one million, one hundred thirty thousand, two hundred twenty".