20342305134120 has 192 divisors, whose sum is σ = 64833260083200. Its totient is φ = 5105097584640.

The previous prime is 20342305134043. The next prime is 20342305134149. The reversal of 20342305134120 is 2143150324302.

It is a super-2 number, since 2×20342305134120² (a number of 27 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 798632985 + ... + 798658455.

It is an arithmetic number, because the mean of its divisors is an integer number (337673229600).

Almost surely, 2^{20342305134120} is an apocalyptic number.

20342305134120 is a gapful number since it is divisible by the number (20) 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 20342305134120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32416630041600).

20342305134120 is an abundant number, since it is smaller than the sum of its proper divisors (44490954949080).

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

20342305134120 is a wasteful number, since it uses less digits than its factorization.

20342305134120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48548 (or 48527 counting only the distinct ones).

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

Adding to 20342305134120 its reverse (2143150324302), we get a palindrome (22485455458422).

The spelling of 20342305134120 in words is "twenty trillion, three hundred forty-two billion, three hundred five million, one hundred thirty-four thousand, one hundred twenty".