20000120120 has 32 divisors (see below), whose sum is σ = 46956805920. Its totient is φ = 7652219520.

The previous prime is 20000120113. The next prime is 20000120131. The reversal of 20000120120 is 2102100002.

It is a Harshad number since it is a multiple of its sum of digits (8).

20000120120 is a modest number, since divided by 120120 gives 20000 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 20000120098 and 20000120107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10868711 + ... + 10870550.

It is an arithmetic number, because the mean of its divisors is an integer number (1467400185).

Almost surely, 2^20000120120 is an apocalyptic number.

20000120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000120120 is an abundant number, since it is smaller than the sum of its proper divisors (26956685800).

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

20000120120 is a wasteful number, since it uses less digits than its factorization.

20000120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21739295 (or 21739291 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20000120120 its reverse (2102100002), we get a palindrome (22102220122).

The spelling of 20000120120 in words is "twenty billion, one hundred twenty thousand, one hundred twenty".