20040234120 has 96 divisors (see below), whose sum is σ = 66516577920. Its totient is φ = 5230354560.

The previous prime is 20040234107. The next prime is 20040234127. The reversal of 20040234120 is 2143204002.

20040234120 is a `hidden beast` number, since 200 + 402 + 3 + 41 + 20 = 666.

It is a super-2 number, since 2×20040234120² (a number of 21 digits) contains 22 as substring.

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 = 20040234093 and 20040234102.

It is not an unprimeable number, because it can be changed into a prime (20040234127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 575286 + ... + 609125.

It is an arithmetic number, because the mean of its divisors is an integer number (692881020).

Almost surely, 2^20040234120 is an apocalyptic number.

20040234120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20040234120 is an abundant number, since it is smaller than the sum of its proper divisors (46476343800).

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

20040234120 is a wasteful number, since it uses less digits than its factorization.

20040234120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184475 (or 1184468 counting only the distinct ones).

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

Adding to 20040234120 its reverse (2143204002), we get a palindrome (22183438122).

The spelling of 20040234120 in words is "twenty billion, forty million, two hundred thirty-four thousand, one hundred twenty".