20420213334120 has 128 divisors (see below), whose sum is σ = 69351668121600. Its totient is φ = 5342646995712.

The previous prime is 20420213334091. The next prime is 20420213334121. The reversal of 20420213334120 is 2143331202402.

20420213334120 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 0 + 213 + 33 + 412 + 0 = 666.

It is a super-2 number, since 2×20420213334120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20420213334121) 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, 178316392 + ... + 178430871.

It is an arithmetic number, because the mean of its divisors is an integer number (541809907200).

Almost surely, 2^{20420213334120} is an apocalyptic number.

20420213334120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20420213334120 is an abundant number, since it is smaller than the sum of its proper divisors (48931454787480).

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

20420213334120 is a wasteful number, since it uses less digits than its factorization.

20420213334120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356747336 (or 356747326 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20420213334120 its reverse (2143331202402), we get a palindrome (22563544536522).

The spelling of 20420213334120 in words is "twenty trillion, four hundred twenty billion, two hundred thirteen million, three hundred thirty-four thousand, one hundred twenty".