120120111111020 has 24 divisors (see below), whose sum is σ = 252954885808800. Its totient is φ = 47914205877632.

The previous prime is 120120111110939. The next prime is 120120111111029. The reversal of 120120111111020 is 20111111021021.

It is a junction number, because it is equal to n+sod(n) for n = 120120111110986 and 120120111111004.

It is not an unprimeable number, because it can be changed into a prime (120120111111029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8364903065 + ... + 8364917424.

It is an arithmetic number, because the mean of its divisors is an integer number (10539786908700).

Almost surely, 2^{120120111111020} is an apocalyptic number.

120120111111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120120111111020 is an abundant number, since it is smaller than the sum of its proper divisors (132834774697780).

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

120120111111020 is a wasteful number, since it uses less digits than its factorization.

120120111111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16729820857 (or 16729820855 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 120120111111020 its reverse (20111111021021), we get a palindrome (140231222132041).

The spelling of 120120111111020 in words is "one hundred twenty trillion, one hundred twenty billion, one hundred eleven million, one hundred eleven thousand, twenty".