120133121020 has 48 divisors (see below), whose sum is σ = 276655067136. Its totient is φ = 43456040000.

The previous prime is 120133121011. The next prime is 120133121021. The reversal of 120133121020 is 20121331021.

It is a junction number, because it is equal to n+sod(n) for n = 120133120985 and 120133121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120133121021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1387456 + ... + 1471495.

It is an arithmetic number, because the mean of its divisors is an integer number (5763647232).

Almost surely, 2^120133121020 is an apocalyptic number.

120133121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120133121020 is an abundant number, since it is smaller than the sum of its proper divisors (156521946116).

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

120133121020 is a wasteful number, since it uses less digits than its factorization.

120133121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859162 (or 2859160 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 120133121020 its reverse (20121331021), we get a palindrome (140254452041).

The spelling of 120133121020 in words is "one hundred twenty billion, one hundred thirty-three million, one hundred twenty-one thousand, twenty".