120010000020 has 24 divisors (see below), whose sum is σ = 336028000224. Its totient is φ = 32002666656.

The previous prime is 120010000009. The next prime is 120010000021. The reversal of 120010000020 is 20000010021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 120009999963 and 120010000008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120010000021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000083274 + ... + 1000083393.

It is an arithmetic number, because the mean of its divisors is an integer number (14001166676).

Almost surely, 2^120010000020 is an apocalyptic number.

120010000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120010000020 is an abundant number, since it is smaller than the sum of its proper divisors (216018000204).

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

120010000020 is a wasteful number, since it uses less digits than its factorization.

120010000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000166679 (or 2000166677 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 120010000020 its reverse (20000010021), we get a palindrome (140010010041).

The spelling of 120010000020 in words is "one hundred twenty billion, ten million, twenty", and thus it is an aban number.