20010234000420 has 144 divisors (see below), whose sum is σ = 66484307176560. Its totient is φ = 4848997859328.

The previous prime is 20010234000371. The next prime is 20010234000443. The reversal of 20010234000420 is 2400043201002.

20010234000420 is a `hidden beast` number, since 2 + 0 + 0 + 10 + 234 + 0 + 0 + 0 + 420 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 5296055076 + 20004937945344 = 72774^2 + 4472688^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20010234000393 and 20010234000402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112657677 + ... + 112835156.

It is an arithmetic number, because the mean of its divisors is an integer number (461696577615).

Almost surely, 2^{20010234000420} is an apocalyptic number.

20010234000420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010234000420 is an abundant number, since it is smaller than the sum of its proper divisors (46474073176140).

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

20010234000420 is a wasteful number, since it uses less digits than its factorization.

20010234000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225492894 (or 225492889 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20010234000420 its reverse (2400043201002), we get a palindrome (22410277201422).

The spelling of 20010234000420 in words is "twenty trillion, ten billion, two hundred thirty-four million, four hundred twenty", and thus it is an aban number.