134523305020 has 96 divisors (see below), whose sum is σ = 312659657856. Its totient is φ = 48301670400.

The previous prime is 134523304997. The next prime is 134523305029. The reversal of 134523305020 is 20503325431.

It is a self number, because there is not a number n which added to its sum of digits gives 134523305020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134523305029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3294972 + ... + 3335548.

It is an arithmetic number, because the mean of its divisors is an integer number (3256871436).

Almost surely, 2^134523305020 is an apocalyptic number.

134523305020 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 134523305020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156329828928).

134523305020 is an abundant number, since it is smaller than the sum of its proper divisors (178136352836).

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

134523305020 is a wasteful number, since it uses less digits than its factorization.

134523305020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40951 (or 40949 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 134523305020 in words is "one hundred thirty-four billion, five hundred twenty-three million, three hundred five thousand, twenty".