120020004120 has 32 divisors (see below), whose sum is σ = 360060012720. Its totient is φ = 32005334400.

The previous prime is 120020004079. The next prime is 120020004133. The reversal of 120020004120 is 21400020021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 120020004096 and 120020004105.

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, 500083231 + ... + 500083470.

Almost surely, 2^120020004120 is an apocalyptic number.

120020004120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120020004120 is an abundant number, since it is smaller than the sum of its proper divisors (240040008600).

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

120020004120 is a wasteful number, since it uses less digits than its factorization.

120020004120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000166715 (or 1000166711 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 120020004120 its reverse (21400020021), we get a palindrome (141420024141).

The spelling of 120020004120 in words is "one hundred twenty billion, twenty million, four thousand, one hundred twenty".