120120120020 has 24 divisors (see below), whose sum is σ = 265528687200. Its totient is φ = 45519203232.

The previous prime is 120120120007. The next prime is 120120120053. The reversal of 120120120020 is 20021021021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 120120119983 and 120120120010.

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, 158052410 + ... + 158053169.

It is an arithmetic number, because the mean of its divisors is an integer number (11063695300).

Almost surely, 2^120120120020 is an apocalyptic number.

120120120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120120120020 is an abundant number, since it is smaller than the sum of its proper divisors (145408567180).

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

120120120020 is a wasteful number, since it uses less digits than its factorization.

120120120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316105607 (or 316105605 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120120120020 its reverse (20021021021), we get a palindrome (140141141041).

It can be divided in two parts, 1201201 and 20020, that added together give a palindrome (1221221).

The spelling of 120120120020 in words is "one hundred twenty billion, one hundred twenty million, one hundred twenty thousand, twenty".